What to do if you can’t log into Odnoklassniki. I can’t log into Odnoklassniki, what should I do? Can't log in due to malicious changes in the hosts file

If you are faced with a situation where you cannot log into Odnoklassniki and a message appears about a sudden blocking of your personal page, please unknown reason, do not rush to send messages with an SMS code, but try to understand the current situation with the help of this article. Even if the page was indeed blocked by the administration, there were still some reasons and if this problem is not solved, then perhaps later you will lose your own account altogether.

Why doesn’t he log into Odnoklassniki? reasons and possible solution

First of all, you should determine whether you can access your personal page social network from another computer or device such as a smartphone or tablet. This is a direct sign of a problem, specifically with the PC from which you are trying and cannot access the Odnoklassniki website:

• If on another device of yours or another person (you don’t have to save the password), you log into your account, then you can say with almost certainty that the culprit is virus on your computer changed the necessary parameters and you find yourself in the wrong place.
• If the account is still blocked on other devices and you know that you did not engage in prohibited activities and did not violate the rules for using the social network, then it is possible that there is some kind of malicious virus on your PC, trying to perform some actions with a personal page or simply using it to steal data and hack an account, as a result, falling under the automatic protection of personal pages of a social network. In this case, it is better to play it safe and view the files that are important for this.

Can't login for a reason malicious changes in the hosts file

The first and most important thing that a virus that appears on a computer does (most likely as a result of viewing an earlier infecting site) is to make changes to system file hosts, which deals specifically with linking a site to a specific IP address.

As a result, instead of the original social network site, the user ends up on an outwardly indistinguishable site, where a message appears asking him to send an SMS message with a code or simply enter data from your account, after which it is stolen accordingly.

In this situation, you must definitely try to figure this out, otherwise you can lose a significant amount of money on your phone and have problems with restoring your own page, but still return to restoring your own computer.

For windows xp/2003/7/8/10 this file is located in the folder C:\Windows\System32\drivers\etc\hosts. If you find it difficult to navigate directly to the desired folder, you can find it by name in the search bar windows. Having found the file we need hosts, you should open it with notepad. It should contain the following entries:

The most latest entries should be:

• On Windows XP: 127.0.0.1 localhost
• IN Windows Vista: ::1 localhost
• On Windows 7/8: # ::1 localhost

Those with a hash mark are initially inactive and are present in the file by default, but everything below without a hash mark with the site names entered are changes that have already been made, with new malicious addresses to which the sending occurs. There may be a whole list of such addresses and, accordingly, if detected, they should be immediately deleted.

• If required you can new file hosts and just replace it.
• After the cleaning has been completed, it is necessary to clean the computer not only with an antivirus (a constantly installed antivirus program very often does not provide protection against such viruses), but also, for example, with a special utility that works specifically against malicious programs of this kind and eliminating traces after infection by them. The purpose of such a program is only temporary, for necessary cleaning; it is not installed on the system for a long time.
• Be sure to restart your computer.

After this, you should already be on real Odnoklassniki.

The hosts file is not edited or saved after changes

• Some antiviruses have strict control over important areas and files, as is the case with the hosts file, as a result of which the computer will swear in every possible way and write something like “ access denied"—to do this, temporarily disable antivirus protection and try to open the file again.
• If the file opened and you were able to fix it, but it does not want to be saved, read the article.

Still won't log in your page on Odnoklassniki

Recently, “virus craftsmen” have managed to make entries much lower than what is visible when opened with notepad, omitting spaces, or worse, making a double of the file hosts and change the location, accordingly make it active, using a key in the registry, and the one that you open in C:\Windows\System32\drivers\etc, leave “for you”.

To do this, we need to open the key we need in the registry and find out which file hosts there is an appeal:

• Start, then Execute(or with the “ WIN+R“) enter the word regedit and press Ok

• For In folder HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\Tcpip\Parameters find the line on the right DataBasePath and look at the path of the file to which the key leads:

• If the path is different from C:\Windows\System32\drivers\etc\, then you need to edit with the right mouse button.

Checking connection and interaction with a genuine site.

This part of the article is intended to help you, when faced with a similar situation, quickly and accurately determine which site the computer interacts with and exchanges data with when navigating.

To do this:

• Click Start, then Execute(in the standard section or simply with the “ WIN+R"), run command line by entering cmd and then click Ok.

• After that enter nslookupok.ru(you can check another site, for example Vk.com) and click enter having thus completed a request for the addresses of classmates.
• And now enter ping ok.ru and press enter requesting the address of the social network with which data is currently being exchanged.

• Now the identified addresses, in our case correctly matching, need to be checked to see if they belong to Odnoklassniki servers. To do this, go to, for example, the service nic.ru/whois/ and enter the ip address obtained during the check:

Now we know for sure that the address with which the computer interacts belongs to the one we need, in this case a social network. This is especially important when you need to restore an account by sending an SMS message, but you are not sure that this is the same one. After this check, you can safely and without risk undergo all recovery procedures.

The resource Odnoklassniki or OK is one of the most popular sites for social communication in the former CIS.

However, very often a problem arises with the fact that the user cannot log into Odnoklassniki’s page.

You can enter the address in the same way email, which is indicated during registration. Entry to the service is free.

What to do if you forgot your OK password

If a user for some reason has forgotten the password for his page on the OK social network, it can be recovered using a few simple steps:

• If a letter or SMS with a code does not arrive for more than five minutes, check the spam folder on your phone or email account or contact feedback website to receive personal assistance in logging into your page.

You also cannot log into your account if the page was attacked, if your account was hacked, follow these steps:

1. Change your network login password as soon as possible;
2. Write in feedback if any data was sent on your behalf;
3. Remove various extensions for classmates from your computer; they may be infected with viruses, with the help of which the account was hacked.

If a resource is down for a long time

Advice! First of all, try logging into the site from someone else's computer. This will let you know if the resource is working for others or if the problem is only occurring on your device. Also check out the smartphone version.

Mobile personal page should contain all the information as the desktop version.

To enter a blocked (old) or deleted page, you should contact the site’s OS - only they can open access to a previously deleted page.

Go to feedback and select “profile blocking” in the menu on the left.

Then choose the question that most suits your situation - “Why can’t I log into closed page and why is the profile blocked?

How to log into Odnoklassniki if the site is added to the list of prohibited sites

If you are trying to get to the start page in OK, but nothing is visible, most likely the site has been added by the computer administrator to the list of prohibited browser resources.

If you are unable to access the page immediately,

If in the last period of time the thought has arisen in your head: “I can’t get into classmates,” then this article was written especially for you. In this article we will ask ourselves an important and interesting question, we will consider everything possible reasons, which may interfere with sitting in online communities, we will select a solution to the identified problem for each proposed option. What could be the reasons for the impossibility of opening your own page? The following difficulties may arise:

• problem affecting Internet use, Internet connection, DNS;
• host (a magic file on a personal device/laptop that restricts visits to certain online communities, these include social networks like Odnoklassniki);
• faulty browser;
• possible virus on a phone, laptop, computer, tablet, etc.;
• Difficulties related to the laptop operating system/ personal computer;
• hacking of a page;
• the profile was blocked by social network administrators;
• forgot your account password;
• an error on an overloaded server of the Odnoklassniki social network;
• blocking Odnoklassniki on your desktop;
• loss of account from the database;
• manually deleting a profile;
• ban on entry through programs;
• difficulty in cleaning the registry;
• The mobile phone refuses to log into the Odnoklassniki account.
• The numbered problems listed above are possible reasons why it is impossible to access Odnoklassniki. Now let’s look at it one by one, in detail, and find a solution to each of the difficulties that have arisen.

I can’t log into my Odnoklassniki page, what should I do?

Password. Check that you are entering your account password correctly. If you can’t access the site, you may have simply forgotten the code for the page, but it can be restored at any time. Therefore, if you cannot log in, reset your password. You can recover your password using a link to your profile, by phone number, when searching for personal data specified on the page (last name, first name, city, age), by using the linked email, by login, or by contacting the social network support service (if other than password do not remember the above requested information). Solution: recover your password by generating a new one and successfully gain access to the site.

Internet server failure. Perhaps the difficulty lies solely in the overload of the social network server, not in the gadgets or the page. The server is overloaded because tens of millions of users visit the site every day, making it difficult to open the site. This happens because the Odnoklassniki server cannot cope with incoming requests, which is how a doss attack usually occurs. Solution: wait a certain amount of time, try again to log into the closed account.

Deleting an account. Probably the account was simply deleted earlier, so access becomes impossible to obtain. What to do in such a case? If the page was deleted earlier, it is possible to restore it; this must be done within the next three months after deletion, otherwise the page will be completely destroyed, and it will be impossible to log into it either from your phone or computer. Solution: restore the page within ninety days or create your own completely new profile.

Internet. The reason probably lies on the Internet. You can find out that an unsuccessful connection is related specifically to the Internet by checking whether the opening of some other Internet page is available, the opportunity to communicate in a competitive online community, if not, then the problem is on the Internet. To resolve an Internet issue, first check your Internet connection. If it is not there, try turning off and turning on the Internet again, that is, reboot. The problem may lie in the DNS; in this case, contact your Internet provider, who will explain step by step how to solve the problem. If you don’t want to call your Internet provider, but are sure that the problem is in DNS, then set the default DNS, check the data in technical support. A virus from the global Internet may be introduced into it, so if there is a virus, this will solve the problem. If all of the above did not help, then check the input when opening the page, for example, instead of ok.ru, enter full version titles.

Perhaps you will be able to solve the problem in this way; if the issue is resolved, then the phishing program has set a certain input, under which only you have the right to access the site.

Virus. The laptop/personal computer is probably infected, then you should download, purchase an antivirus program, completely scan the computer/laptop for viruses, and then destroy it, allowing the deletion of infected files. If your gadget does not have a good professional software installed antivirus program, then download the free version from the Internet, because the antivirus should be not only on a personal computer, but on a phone, iPhone, Android, tablet, and so on. Recommended free versions AVAST virus, official version Microsoft antivirus (recommended, free), Kaspersky antivirus and CCleaner (the antivirus also cleans the registry).

Host file The entry ban may be contained in a magic file on the host PC at home. Go to the etc folder on your C drive and find this document. Select and open in Notepad. If it mentions a link to a website or an incorrect IP address, it means there is a problem with the file. It indicates which domain name corresponds to which IP address, therefore, if you enter the first or second in a pair incorrectly, it will lead to a problem such as the inability to enter the site.
Another way to solve the problem is to completely rewrite the etc folder. This folder will need to be copied from another healthy personal computer to a memory card, rewritten to yours, then the problem with accessing the site will disappear.
If we were previously able to log into a page in Odnoklassniki, then we can use a kind of time machine from the computer and return it to the moment when access was not limited. To do this, go to “PC Settings” and select “Update and recovery” and “Restore your personal computer without deleting files”, then the PC will automatically return to previous settings when entry was free.

You can simply delete the file by holding down the shift button, or delete the contents in it and then save the changes made. These solutions should be used if you have difficulties with the hosts file.

Browser. The problem may lie in the computer Internet browser you are using, so if logging in is not possible, try logging in and opening the following Internet browser (Google, Yandex, Internet Explorer and others).

Registry. It is necessary to regularly clean the registry, otherwise you will encounter difficulties and your personal computer will begin to lack resources to connect to Internet pages. Therefore, if you suspect that the computer simply will not connect to the site, try cleaning the registry.

Device. Change your device, try to enter the page using someone else's phone, iPhone, smartphone, friend's computer, or any unfamiliar device. If logging in from another device is not difficult, then the problem is in the phone/computer.

Hacking of the page. Your profile can be hacked by unscrupulous people. Typically, such actions are resorted to during fraud, so be extremely vigilant! Urgently restore your personal page by contacting the Support Service or change it, come up with a unique one complex password for the page.

Blocked by administrators. Any social network user can complain about an account, so it can be blocked by the Odnoklassniki administrators themselves. In this case, as a punishment, a ban is imposed on entering the site or using the social network for a certain amount of time. Administrators also have the right to block a page, as if preventing it from being hacked by strangers. In this case, a message will appear: “the profile has been blocked to prevent hacking.” At the bottom there will be an “Unblock” button, you will need to click on it. Solution: wait until your page is unblocked.

Lock on the desktop of a personal computer. In this case, the blocking is set by the system administrator, so without his permission you will not be able to log into your page, since there is a restriction. You should either negotiate with the administrator, or use a cunning anonymizer, but there is no guarantee that you will be able to log in, so the only solution is to get permission by agreeing with the administrator.

Blocking by fake programs. Perhaps you have installed malware, limiting the use of the Odnoklassniki social network, that is, these programs contain a virus. Remember what program/programs were installed on your gadgets before the problem with logging into the page occurred, try to disable them. After disconnecting, try again to log into your account; if logged in successfully, delete these programs and under no circumstances download dubious programs onto your computer, laptop, or phone that are configured not only to limit your use of devices and websites, but also to collect information about you, collect your logins and passwords for various sites, data about your personal bank cards and so on.

Virus programs are often used by scammers. This could be a program to increase subscribers, likes, or similar actions.

Missing from the database. In this case, you will receive a recording on English. Contact the Service that provides Administrative Support and inform them that personal data has been lost from the database and you are not able to log into their website. If your old page is not of particular value, then just open a new profile.

Operating system. This decision should preferably be left until the very end, because this is the riskiest action. First, try all of the above steps, if nothing helps, then roll back the operating system or reinstall it completely. The operating system can be found on disk or downloaded on the Internet, but do not forget that this is more suitable for knowledgeable people, because they know the special combinations. This takes a decent amount of time. The operating system takes several hours to install.

Now you know all the difficulties and difficulties that most people encounter when trying to open the Odnoklassniki website or log into their personal profile. Carefully study the information, try to perform the above steps step by step, and then the problem with logging into Odnoklassniki will definitely be resolved. You will be able to surf the social network, chat with friends and family, share statuses, watch movies and play games, and help friends who are facing similar difficulties.

I can’t log in to Odnoklassniki, the profile does not load. All pages of my sites open except this site, what happened? Now we will look at almost all the reasons why this could happen. Why couldn't you access your page? To solve the problem, you will need a little time and no financial costs. We will also explain how to prevent this problem from occurring again and not need to send any SMS anywhere. Don't fall for scammers' tricks.

I can’t log into Odnoklassniki

Friends, I understand that this article is being read by ordinary users who have a great desire to get rid of the problem with one click and get to their favorite site, unfortunately in most cases, this same click will not help and if you want to get rid of the problem yourself, but The most important thing is to understand why you cannot log into your profile on Odnoklassniki, you need to do a little more clicks.

• You must definitely remember technical problems on classmates themselves, this happens, although rarely.
• If our article does not help you, check out two more detailed articles on the same topic, they should definitely help: or
• A great solution to the problem in your situation is scanning the drive (C:) with a free antivirus utility (I recommend it).
• Try using , or if you roll back to a time when you didn’t have such problems, it’s not difficult and can really help.
• Also, do not forget about the classmate support service, copy this address and paste it into the address bar of your browser, press Enter: http://www.odnoklassniki.ru/dk?st.cmd=helpFaq&st.section=2&st.prev=0
• Now attention, perhaps when traveling on the Internet, when visiting some site, suddenly a small window pops up in front of you (there’s no other way to describe it) with an unpleasant sound and a warning that your page in Odnoklassniki has been hacked or blocked, you will be asked to click “Unblock” "

  and you click naturally, then go to a phishing or, in other words, a fake site, designed in the style of classmates, there you will be asked to enter your username and password (supposedly to solve your non-existent problem - hacking your page), which immediately falls into the hands of attackers. Now further development of the situation.

  

  Spammers will not change your password on your classmates’ website, since your page is linked to your phone, but will send spam from your profile, ask your friends to put money on their phone (naturally, they will do everything on your behalf). At this time you cannot go to Odnoklassniki, because having visited the scammers’ site you have planted a virus in your operating system. What did the virus do? The virus has modified a simple text hosts file on your system (in this case text file you can manually register a ban on visiting any site or register another, you will type www.odnoklassniki.ru and end up in a completely different place), details in our article "Sites won't open" (link to article above), after that you naturally constantly end up on the fake website of your classmates or nowhere at all, it depends on the imagination of the scammers. A natural question arises. What to do?

• Here's what you need to do. First, type in the address bar of your browser instead of www.odnoklassniki.ru their direct IP address: 217.20.147.94 sometimes this trick helps to outwit the virus located on your computer. You can also find another computer, for example with a friend, go to your Odnoklassniki profile (in most cases this will be possible) and change your password, then on your computer WITHOUT going to odnoklassniki.ru (the password will be stolen again) we correct the hosts file and we are looking for a virus, how to do it all step by step, read further in our article. If you are too lazy to look for another computer, then you need to immediately edit the hosts file automatically or manually, as described step by step below. Then you definitely need to check your computer for viruses, this article will help or simpler
• Also look at the registry branch, it contains routing tables
  there shouldn't be anything in it at all.

  

• Perhaps everything was simpler and you had a simple simple password and you were hacked using a program that works by brute-force passwords. You need to request password recovery on the Odnoklassniki website (read how to do it below).
• It often helps to solve the problem with logging into Odnoklassniki. complete reinstallation browser, and not partial, since you cannot log into Odnoklassniki due to errors in the temporary browser files located at C:\Users\Your username\AppData\Local\Opera and also C:\Users\Your username \AppData\Roaming\Opera , as well as C:\Users\Your username\AppData\Local\Temp , then reboot and install Opera browser the contents of these folders must be deleted again, the full process is described in the article
• Try using alternative browser If you have Mozilla, try Opera.
• If you are at your workplace, perhaps your bosses have blocked access to Odnoklassniki (you can do this in different ways, organizations constantly contact our service with similar requests).

So let's edit the file hosts. Do it best automatically on the official website Microsoft . Follow the link, click on the Microsoft Fix it button, download this small utility and run it, you will automatically fix the file hosts.

Also file hosts can be fixed manually, it is located at C:\Windows\System32\drivers\etc\ hosts . Before you can edit it, you need to enable the system to display hidden files and folders, then remove the read-only attribute from the file.

Open this file double click. When prompted to choose a program to open the file, select Notepad. Review the text carefully. The last line in the standard file should be 127.0.0.1 local host, remove the excess. Everything is shown in the illustrations of our article, and at the end the original contents of the hosts file are given, you can copy it. Then click save and close this file.

Hosts file

File Contents hosts , you can copy and replace

# (C) Microsoft Corp., 1993-1999
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains mappings of IP addresses to hostnames.
# Each element must be on a separate line. The IP address must
# should be in the first column and must be followed by the appropriate name.
# The IP address and hostname must be separated by at least one space.
#
# Additionally, some lines may contain comments
# (such as this line), they must follow the node name and be separated
# from it with the symbol "#".
#
# For example:
#
# 102.54.94.97 rhino.acme.com # origin server
# 38.25.63.10 x.acme.com # client node x

127.0.0.1 localhost

Important note: If, after editing the hosts file, you again cannot log into your Odnoklassniki page, then you need to change the entire folder (etc), taking it from a healthy computer, believe me, this will solve the problem in 90% of cases.

The etc folder weighs 36 kilobytes, your friends can send it to you via Skype.

Friends, recently virus writers have come up with a trick if, for example, you open the hosts file
in a notepad, then at first glance nothing suspicious will seem to you, the contents of the hosts file will be standard,
but if you scroll the scroll arrow to the end, to the very end of the hosts file, then there you can find, for example, such malicious entries; of course, they need to be deleted.

One more important note. If you have problems accessing the Odnoklassniki website, be sure to check the Connection Properties by local network, very often the virus writes the addresses of its DNS servers there.

You can do it like this:

Start -Panel control - Network and Internet - Network Control Center and shared access–Change adapter parameters, then go to Local Area Connection Properties
Internet Protocol Version 4 (TCP/IPv4) and Properties

If your Internet provider assigns IP addresses to all computers on the network automatically, then you should have the following set here:

Obtain an IP address automatically and Obtain a DNS server address automatically. But sometimes a virus registers its Preferred DNS server here.

For example, as in this example, the virus has written the Preferred DNS server here, you need to delete it and check the " Obtain the DNS server address automatically. Automatically". Or call your provider and clarify what data should currently be entered in the Properties window: Internet Protocol version 4 (TCP/IPv4)

How to change the password on Odnoklassniki correctly.

If you cannot log into Odnoklassniki and when entering your login and password you receive an error (The login and/or password is incorrect)

Click Forgot your password and login?

Further, when I personally fix such problems, I first enter email address which was specified during registration for example: [email protected] and he receives a letter from the administration of his classmates with an offer to change the password. Sometimes I bring up my phone number, and I receive an activation code with which I can change the password on Odnoklassniki. You need to be careful with your phone, you don’t need to send money anywhere, you should understand this from the contents of the SMS you received from your classmates.

Well, one last thing: Remember what not to do if you are on the Internet.
You don’t need to open suspicious emails from strangers, enter your password from classmates anywhere, visit suspicious sites, don’t click on suspicious pop-ups on unfamiliar sites, you need to constantly update your antivirus database.

If you have problems logging into Odnoklassniki, this article will help solve the most common problems. Step by step instructions with illustrations is designed specifically for troubleshooting errors on your own when people are looking for an answer " I can’t log into Odnoklassniki’s page».

You cannot log into Odnoklassniki for the following reasons:

Forgot the address of your Odnoklassniki page.

One of the most common cases is when people are just starting to learn how to use the Internet and if the browser settings go wrong, they don’t know and therefore cannot log into. Launch the browser: Opera, Mozilla FireFox,Chrome.

As a rule, the program shortcut is located on the desktop or taskbar; double-click on it with the mouse.

In the address bar, enter the address: odnoklassniki.ru or ok.ru

In the window that opens, enter your username and password. If the data was saved before, you will automatically log in to Odnoklassniki without a password.

Forgot your login or password for Odnoklassniki...

Go to the page of the social networking site and click “Forgot your password”.

You will be prompted to enter your login, email address, or phone number. After entering data by email or the phone will come a message containing the access code to the page. After this, you will need to re-create the password combination to log into Odnoklassniki.

Access to classmates is closed.

Very often, offices or companies specifically block social networks so that employees do not waste their working time. But there are times when you really need to read or send a message, congratulate someone or just take necessary information from your page. What to do in this case?

One of the options is to go to the site from your phone or use the special Anonymizer service.

Anonymizer allows you to bypass prohibitions in most cases system administrators and installed surge protectors.
Several services that provide access to Odnoklassniki:
- http://biglu.ru
- kalarupa.com

They ask you to enter a phone number or send an SMS.

You will be asked to enter a phone number if you visited the page from different IP addresses, and they are very different geographically. This may occur while traveling, using an anonymizer, or your page has been hacked (the attacker lives in another city), or they have been sending SPAM. In the first two cases there is nothing wrong, you need to confirm the phone number and enter the code in the received SMS message.

If you have not traveled and do not use an anonymizer for Odnoklassniki, there is a high probability that your page has been hacked. We strongly recommend that you provide your phone number or email and restore access.

Go to the page settings and check your data (phone number, email), and then change your password.
If you are asked to enter a phone number and then send an SMS message to confirm, these are scammers. The official website of the social network never requires you to send an SMS to any number to restore access. It is difficult for a visually untrained person to distinguish a real page from a fake one, so one of the recommendations is to try to access your wanderer from another computer or through a smartphone (). If you log in without problems, it means there is a virus on your computer or the Host file has been specially modified.
Read on to learn how to fight the virus on Odnoklassniki.

The virus is blocking the Odnoklassniki website.

If a virus blocks a site from your computer or you go to a site and you are asked to send an SMS message, but from another you can freely access your page, then you need to take appropriate measures.

First step. Check the Host file.

It is located at C:\Windows\System32\drivers\etc\hosts.

Click on it and open it using notepad. The last line should contain:
127.0.0.1 localhost,
There should be no other entries after this line; all unnecessary entries should be deleted. Look carefully to see if there is any scrolling in the notepad, because... sometimes entries are hidden at the very end of the page, with many empty lines added before it. If the hosts file is in perfect order, the next step is to scan your computer for viruses.

From the official website, download one utility to choose from for searching and removing viruses:
- Kaspersky Virus Removal Tool http://www.kaspersky.ua/antivirus-removal-tool
- Dr.Web CureIt! https://free.drweb.ru/cureit/
- Malwarebytes Anti-Malware https://ru.malwarebytes.org/antimalware/

For example, Dr.Web CureIt!

Download the utility and run it.

In the window that appears, click “Start scanning”

At the end of the scan, the program will show a list of viruses found that were detected and neutralized (quarantined). After restarting your computer, you can try to access the Odnoklassniki website.

Remember! To avoid catching the virus again, follow simple rules.

• no need to open suspicious emails from strangers who come by mail;
• enter login and password from classmates on sites other than the official one;
• click on suspicious pop-up windows that ask you to perform this or that action;
• Be sure to install an antivirus on your computer.

This is interesting:
Grandmother cooks toast for her grandson for dinner. To prepare them, she uses a small frying pan that can only hold two bread slices. It takes one minute to fry each side of a slice of bread. To cook three croutons, grandma only needs three minutes instead of the obvious four. How does she manage to do this?