How To Change Boot Drive. How to change boot order in BIOS settings on your computer to boot from a different hard drive, boot from a USB stick, CD or other device. I am getting warnings that my C: drive is failing, and I need to have a different boot drive before it finally quits.
In this step, you should move the drive that you want to boot from to the top of the list. If it boots properly and you have successfully changed the boot order settings, you shouldn't face any issues by putting the HDD back in the secondary slot and then re-format it through Disk management to get rid of the old OS installation. The boot menu shows up every time you turn on a PC where two or more Windows operating systems are installed.
Once you have changed the boot drive, you will need to save the change.
If you have important data, make sure you back it up somewhere.
Change boot order to boot from the cloned SSD. Changing the boot order on a PC is normally done in order to boot from a recovery disk or from an OEM disk that runs some kind of Windows repair software, such as the Recovery Console. It is very confusing, and I cannot figure out how to change the boot drive.