Uninstall Windows Genuine Advance (WGA)

• Matikan process “wgatray.exe” di Task Manager
• Restart Windows XP dan masuk safe mode
• Delete WgaTray.exe dari c:\Windows\System32
• Delete WgaTray.exe dari c:\Windows\System32\dllcache
• Buka RegEdit, cari: HKEY_LOCAL_MACHINE \\ SOFTWARE \\ Microsoft \\ Windows NT \\ CurrentVersion \\ Winlogon \\ Notify
• Delete folder “WgaLogon” dan seluruh isinya
• Reboot Windows XP