Check the operating system authenticationMicrosoft Windows runs a special update for KV971033 number. The result of this test may be "black screen of death" and the inability to continue working.
The easiest way to get rid of this problem is the system restore from a backup.
If this is not possible - use the alternative method.
Click "Start" to enter the main menu system and go to "Control Panel".
Select option "Small Icons" in the "Category" in the upper right pane, and then expand "the Windows Update" link.
Navigate to the option "View update history" and select "Installed Updates" section.
Call the context menu of the desired upgrade KV971033 and select the command "Delete".
Return to the "Control Panel" and go to the point of "the Windows Update" to perform the procedure, disconnect the selected updates.
Click "Check for Updates" and wait for the message on the system is available.
Select the proposed upgrade and uncheck its box.
Call the popup menu bar updates, click the right mouse button and select the command "Hide update".
Restart the computer to apply the changes and use the selected program "Activator Windows» to restore the entire Windows operating system functionality.
Return to the main "Start" menu and navigate to the item "Run" to use an alternative method to uninstall Windows authentication (for Windows XP).
Type regedit in the value of the field "Open" and then click OK to start Knop "Registry Editor" tool.
Expand the registry branch
and delete the entire section WgaLogon (for Windows XP).
Restart the computer to apply the selected changes.
Use RemoveWAT21 program to remove Windows authentication (for Windows 7 only).