Turns out BOOTMGR was corrupt. I fixed it by running those 2 commands with bootrec.
Now I'm back on AHCI.
Although how do we get Windows 7 to work now?
I used Windows 7 Disk Managment to mark the drive as active.
Then went onto Windows 10 repair cmd and used bootrec.
That's how I fixed the 1st issue.
Now that Win 10 is working do the same to Win 7
- Detach ALL drivers, leaving on only disk 1
- Boot from win 7 installation disk, go to repair - Boot repair
Thx both work now.
Although it didn't require me to remove HDDs.
Marking HDD active worked with disk managment and partdisk.
Good it's working.
Please mark this Thread as solved.
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