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Caution dual booting windows 7 & 10 may cause issue
Caution dual booting windows 7 & 10 may cause issues. Doesn't matter if it is retail or oem. Windows 10 does some weird things when using it. So, it makes windows 7 do a consistency check on the drive. It could also be Macrium image not restoring windows 7 correctly.
What I may have to do to get around this issue.
Is restore back to windows 7 oem without windows 10
Upgrade to windows 10 oem
Create the windows 10 oem usb recovery drive
restore back to windows 7 oem without windows 10
Change the Windows 7 oem to retail legally
Do some partitioning to create space for windows 10 clean install
Install windows 10 on the 2nd partition.
Reinstall grub and hope that works.