Chris: If I leave the computer running Win8.1SE for a day, Windows will show a activation reminder on the right lower corner of the screen. I Google the web for solution. People suggests to modify registry:"HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\WPAEvents" and change OOBETimer value to "FF D5 71 D6 8B 6A 8D 6F D5 33 93 FD". This suppose to remove the reminder. Unfortunately, there is not entry of "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\WPAEvents" in Win8.1SE registry.