Warning "After operation completion, operating systems will not boot from destination disk in the BIOS"
I am testing recovery using ATI 2015. I simply want to be assured that if (when?)I upgrade to Windows 10 I can revert to Windows 8.1 if I want to. Or that I can recover from some future hardware crash.
So I'm trying the recovery operation as far as the finish screen just to see what would happen. On the "Select items to recover" page I choose the single disk - Disk 1. On the next page "Select Destination of Disk 1" I have Disk 1 (now my external HDD containing the backup) and Disk 2 the HDD for Windows, which is selected for me.
BUT there is a warning : "After operation completion, operating systems will not boot from the destination disk in the BIOS"
I would be grateful if some one could explain what this warning means. If I were to go ahead would I have an unbootable system? If so why? How could I avoid that?
Further details in case they might help:
Acronis build 6613
System: ASUS UEFI BIOS
The Recovery Wizard offers the following items from the backup, so I chose the disk to recover them all:
NTFS Windows (C:) Flag:Pri
MBR Track 0
NTFS(Windows RE tools) Flag:Pri
FAT 32 SYSTEM Flag:Pri
NTFS (Recovery Image) Flag:Pri
I notice that the documentation says the flags should be Pri,Act but mine are all just Pri.
Many thanks for any help