I think I've cocked up. I'm running windows 7 but then decided to try windows 10 as well. I installed windows 10 on a separate HDD and was able to switch between windows 7 or 10 by using the bios booting option
However because somehow or other the HDD's and CD roms were assigned drive letters out of sequence, (CD roms were D & E, my 2TB Hdd was mixture of F to K). I decided to change the drive letters while I was in windows 7.but didn't keep a record of what the original Drive letters were.
Now I cannot get my Windows 10 to boot. I've tried with only the Windows 10 hdd connected, also tried with a Macrium repair disc in the CD Rom but no way will the windows 10 boot.
I cannot really understand why this should happen as the windows 10 is obviously on C drive on the other HDD. All I keep getting are messages via the Bios.
Is this change of drive letters possibly the reason for the problem as I've been using both systems for a couple of months and was just starting the migration from 7 to 10
Any help would be appreciated