how to prevent black screens after October 20
Microsoft will launch a genuine verification plan for Windows XP Professional Edition and office in 20th day of this month for the Chinese market. At that time, A computer installed with Pirated Windows XP Professional edition will be forcibly "black screen" every hour (the desktop background will change to pure black), and the menu bar of the Office will be marked as "not genuine.
how to avoid this problem
1. my computer-properties-auto update-Disable auto update
2. start-run (enter services. MSC)-Disable office Source engine and automatic update.
If a black screen is displayed every hour after the 20th, use the following method:
@ Echo off
SFC/purgecache
Reg Delete "HKEY_LOCAL_MACHINE/software/Microsoft/Windows NT/CurrentVersion/Winlogon/notify/wgalogon"/F
Taskkill/f/IM wgatray.exe/T
Del C:/Windows/system32/wgatray.exe/f/Q
Taskkill/f/IM wgatray.exe/T
Del C:/Windows/system32/wgatray.exe/f/Q
Taskkill/f/IM wgatray.exe/T
Del C:/Windows/system32/wgatray.exe/f/Q
Taskkill/f/IM wgatray.exe/T
Del C:/Windows/system32/wgatray.exe/f/Q
Taskkill/f/IM wgatray.exe/T
Del C:/winnt/system32/wgatray.exe/f/Q
Taskkill/f/IM wgatray.exe/T
Del C:/winnt/system32/wgatray.exe/f/Q
Taskkill/f/IM wgatray.exe/T
Del C:/winnt/system32/wgatray.exe/f/Q
Echo. & pause
Copy the above file to notepad and save it. Change the txt extension of notepad to bat, and then run