Multi-boot (exactly) the same (W7) partition

#1
Probably mad and/or stupid...I know I can image my current (W7) C: partition to a spare disk and put that on a shelf as a system image backup. But it would be nice if I could
1. image c: partition to a spare partition (same computer different disk)
2. use bcdedit to create a multi-boot of the 2 identical partitions (see ** for why)

And I tried it - works fine- except the drive letters are screwed when booting from the copied partition. I'm slightly surprised that the boot partition isn't automatically renamed as C: So can I simply change the drive letters? I'm guessing I cannot change the letter of the current boot partition...

(**) while I upgrade one of the images to W10.
 

mqudsi

Mostly Harmless
Staff member
#2
Yup, just go into the registry HKLM\System\MountedDevices and swap the drive letters you see there however you would like.
 

mqudsi

Mostly Harmless
Staff member
#4
Yup. Make sure you don't end up with any conflicts (multiple drives mapping to the same volume) or inconsistencies (multiple volumes mapping to the same drive).
 
#5
Yup. Make sure you don't end up with any conflicts (multiple drives mapping to the same volume) or inconsistencies (multiple volumes mapping to the same drive).
Thanks.

I have a dual multiboot:-
C: W7ORIG (when selected at boot works fine -as expected- this is the original bootable partition)
E: W7COPY (when selected at boot the drive name stays as E:; if I manually change C:->Z: and then E:-C: this will fix it?)
 

mqudsi

Mostly Harmless
Staff member
#6
Yes, but from within the cloned OS obviously.