Two boot drives available, but one isn't working.
Two boot drives available, but one isn't working.
You’re seeing the same Windows installation because you’re using the same partition for both drives. To boot into the other drive, create a bootable USB or DVD and install Windows there. Alternatively, use the built-in recovery tools on your main drive to restore the other partition.
Select the appropriate boot drive in your BIOS settings. Be aware that if the secondary drive comes from a PC with older BIOS, you might need to turn off Secure Boot and activate CSMOS.
Avoid the boot menu and select the drive based on the BIOS load sequence.