Migrate from RAID to SSD and changing to AHCI

I had to achieve this for a customer and it proved to be a little more of a challenge than I thought it would be but in the end when I stumbled across this fix it took just a few minutes to finalise plus of course the cloning time of the hard drives which takes a couple of hours!

The important factor here is - My RAID hard drives are performing fine I would just like to change my system to a single hard drive (SSD in this case) and when i remove one drive and try and boot the system wont boot and i get all sorts of errors.

Try this, it worked for me first time with no loss of data:

  1. Open The Command Promp as Administrator and run: bcdedit /set {current} safeboot minimal
  2. Restart PC into the BIOS and set SATA mode to AHCI
  3. Restart PC. Windows will boot into safe mode and will update drivers, you might not see anything happen at all!
  4. Open The Command Promp as Administrator and run: bcdedit /deletevalue {current} safeboot
  5. Shutdown the PC and disconnect either disk so only 1 is attached
  6. Restart the PC and Windows will boot normally.
  7. Clone your disk using Acronis or Macrium type software

Note: If your PC stays in safe mode after step 4 just run step 4 again, mine needed 2 goes.

I hope this saves you half a day scratching your head like i did!!

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