Hi jimbo, Thanks for the quick response. I’ve just re-read my original post and realised I made a critical mistake in the wording (doh, good start eh !), I didn’t mean the Windows boot manager I meant to say that I wanted to use the UEFI Boot Manager in my BIOS to select which disk to boot from...
I’ve just bought a new PC to replace an ageing Dell Precision 490. On my old Dell I had two large SSDs (MBR formatted) each containing one Windows 10 system and one Windows 11 system, so 4 bootable systems in all and I could clone from one to the other easily and quickly using Paragon Drive Copy...