How to block access to the site

You need to log on to a computer administrator account. Once you are logged in under an account of administrator does, go to "My computer" and search your hard drive (C:) folder "Windows". In it select the folder “System32”, then folder “drivers”, and finally, the folder “etc”.
In the folder “etc” is a file “hosts”, not to be confused with the file “host”. The hosts file has no extension but you can open it with Notepad, by clicking on the file, right-click and selecting "Open with..." or by running "Notepad" and move the "hosts" in workspace "Notepad". Before you open a text file, deny access to Internet resources. At the end of the file enter the line:
127.0.0.1 sait.ru

127.0.0.1 www.sait.ru

127.0.0.1 sait2.ru

127.0.0.1 www.sait2.ru
where “sait.ru”, “sait2.ru” addresses of sites that you want to deny access. Duplicate addresses, adding to them the prefix “www”, then close and save the file.

The second way is to use antivirus. For example, "Eset Nod 32" option "Protection and Internet run hit F5). Go to this option in the "Manage addresses" and select "List of blocked addresses and templates" - Add. In the new window enter the address of the site to which you want to restrict access. For antivirus you can set a password to delete a denied URL was not possible.

The third method is the use of specialized firewalls and additional software. Download and install the program “KinderGate Parental Control” (please note, activating the software paid). Run the program and find the button "Ban address", then click "Add". In the new window enter the address of the site to which you want to restrict access. “KinderGate” starts and is removed with the password so children cannot access sites prohibited by program.