With an old laptop, I cloned the OS HD to an SSD with Macrium Reflect, both harddrives are mounted inside the laptop. When I enter the BIOS, I wanted to select the SSD as the first boot choice ...

More: How to use the BIOS or UEFI to check if your boot drive has failed Removing the old drive and installing the new one The exact process here will vary depending on what sort of PC you're using.

Windows 11/10 Recovery System allows you to get into UEFI/BIOS settings from the OS & change your boot order. You can boot from HDD, SSD, USB or DVD Drive.

How to Clone Your Hard Disk to an SSD Using Clonezilla Clonezilla is free and is OS-independent drive cloning software.

If you're having issues whereby the Cloned SSD or HDD won't boot Windows 11/10 on your computer, then these fixes are sure to help you.