I've made a WGA (Windows Genuine Advantages) Notification removal tool. I don't know if I'm not supposed to post this type of thread but the file is clean, with VirusTotal scan results screen shot.
Exe File Size: 84.0 KB (86,016 bytes)
Zip File Size: 44.8 KB (45,975 bytes)
Description: This program removes the WGAN (Windows Genuine Advantages Notification) tool.
This will remove the popups before and after you login to windows, including the program on the system tray.
No WGA detected: