Authentication operating system Windows (activation of Windows) - a procedure that checks for the presence of the original files in the operating system itself, and license (including the key that was entered during the installation of OS).If the operating system did not pass such a test, the user is significantly reduced the possibility of working with a computer.Usually, when the operating system is being tested in the far right corner of the desktop a message appears.

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There are several reasons for the appearance of such a message and a few ways to solve it.Firstly, not all PC users can afford to buy a licensed version of the operating system as a single disk can cost more than five thousand.If your computer does not have a licensed copy, you must first disable the OS update.If, however, this service has not been disabled dur
ing and got black screen, indicating that the copy of Windows is not authenticated, then you need to remove the update: KB971033 and KB915597.In order to find and remove them, you need to right-click on "My Computer" in the context menu select "Properties".The properties of the user must select "Update Windows» and go to the tab "Installed Updates."There will be a list of all updates that have ever been installed and are used to this day.Use the search is necessary to find messages like: "Update for Microsoft Windows KB915597» and "Update for Microsoft Windows KB971033».It is worth noting that the first update using the standard "Defender Windows» (Widnows Defender), which is similar to anti-virus software.These updates need to be isolated and removed using the appropriate button.

Disabling services and features special software

In addition, the problem may be even in the service of sppsvc.As a result, it is necessary to find and disable.You can do this in the menu "Administration", which is in the "Control Panel."When the window "Administration", you need to go to the tab "Services", and with the help of the search to find sppsvc.When it is found, it must be switched off (button is "Stop").As a result, the system must be restarted and the problem should be solved.

It is worth noting that there is a special program that lets you remove the activation window Windows - RemoveWAT21.This small program can solve the urgent problem of all possible ways (of which there are many).It can either work with updates, or the registry etc.In order to get rid of the window to activate, you only need to download RemoveWAT21 and press a special button «RemoveWAT».After restarting the computer, the operating system activation window will disappear.If necessary, the original data can be restored using the «Restore WAT».