====== Switching from RAID to AHCI ======
Windows hates you, so it won't boot if you do this. Apparently installing the driver for only IDE/AHCI/RAID on installation is a sensible idea. Windows, why!?!??!

===== What to do =====
  - Boot in whichever mode works.
  - Force safe-mode booting with ''bcdedit /set safeboot minimal'' (as administrator)
  - Boot to UEFI setup, change to the mode you want
  - Boot Windows in safe mode
  - Disable safemode with ''bcdedit /deletevalue safeboot'' (as administrator) <callout>Note that you probably can't launch Terminal in safe mode, because who knows. You'll probably have to use cmd or powershell.</callout>
  - Reboot
  - Now it works! Wow! How stupid is that?