Disabling the “Windows Genuine Advantage Notifications" Screen
Step #1: Access your Windows Task Manager by pressing (Ctrl + Alt + Delete) on your keyboard. Click on the "Processes" tab at the top of the dialogue box. Click on the process "wgatray.exe" and then press on the "End Process" button.
Step #2: Restart your computer in Safe Mode. You can initiate Safe Mode by tapping the F5, F8, DEL or NUM Lock key, depending on the type of BIOS you have, and choosing "Safe Mode."
Step #3: Locate the file C:\Windows\System32. Delete the file wgatray.exe. Next, navigate to the file C:\Windows\dllcache. Delete the file wgatray.exe.
Step #4: Click on Start and then Run. Type regedit into the text field. This will open the Registry Editor. In the Registry Editor, navigate to this entry: HKEY_LOCAL_MACHINE_\SOFTWARE\Microsoft \Windows NT\ CurrentVersion\Winlogon\Notify. Click on this registry key and delete the folder named: WgaLogon.
Step #5: Close your Registry Editor and restart your computer. When prompted to install the Windows Genuine Advantage Notifications screen again, just unselect it. You are now rid of that nagging notification screen.