Ok, so I have two choices: Either MS Toolkit, or BIOS (UEFI) modifying. I have some major questions though: 1) Microsoft Toolkit 2.5.3 extends the Windows' trial period to 180 days and activates completely Microsoft Office? 2) If I choose the BIOS method, I'll just have to run some commands in cmd with the certificate and the OEM key numbers and that's it? (supposedly having already an SLIC 2.1) 3) Can I use this method (BIOS mod) in a non-OEM PC, meaning a system I've built myself? 4) Which way of activating Windows do you recommend anyway? Some help please Thanks!