Disable WGATray.exe
Before proceeding to this quick fix, proceed to this site which discusses extensive details in bypassing Windows Genuine Authentication update and ensures your machine can gets critical updates. So far, method #2 worked for me.
Then now, the problem is the pesky “WGAtray.exe” which pops up on your system. To disable the program without reappearing, you need to locate in Windows Explorer the WGATray.exe (normally in C:\Windows\system32) and open the Task Manager highlighting the same program.
The two windows should be open at the same time and in split seconds, first end the WGATray.exe process in the Task Manager and second delete the wgatray.exe file. This will prevent the program in reappearing. Then the next step is locate “Wgalogon.dll” (normally in C:\Windows\system32) and delete. When you reboot your system, the WGA notifier will no longer run.