I installed Windows 8 (retail) on a new drive with my Windows 7 drive unplugged. So each Windows has no idea about the other one and I use the BIOS boot options to select which drive hence OS to boot into.
Now whenever I boot into Windows 8 then boot into Windows 7, Windows 7 runs chkdisk presumably because Windows 8 messed with it.
Is there anyway to stop this? (In hindsight I should have installed Windows 8 with Windows 7 drive plugged in so I could use the Windows dual boot options).