Untouched. The only cause or explanation I have is that I didn't clear the CMOS (or is called an RTC now with EFI). Just to check do I have to install any SLP certificates?
Just flash bios (I hope you've a recovery bios chip like many modern motherboards), load Windows 7 and then copy ASUS.XRM-MS 2.1 SLIC Cert on your root drive (C:\) and use SLMGR.VBS -ILC C:\ASUS.XRM-MS syntax command from command prompt (execute that command with admin rights).
Thanks! I'll give some feedback by tomorrow evening as to how the activation went, it's a little late in the day to be doing anything today.