An unkillable process? Popup windows? A prompt you have to click at logon? My GOD!!! But it's ok. You CAN get rid of it:
There are 2 parts to this spyware popup: WGAtray.exe and wgalogon.dll. Killing the WGAtray.exe process causes it to reappear in 1 second. With it present, WGAlogon cannot be deleted. And you can't delete it while it's running. Seem impossible? Nah. Click here
to see how to remove it.
Credit: The Inquirer