Windows 7 seems to automatically performs a CHKDSK of any new hard-drive installed in a computer at startup (before login screen).
There is a way to skip that by pressing a key but you have to be fast (it will automatically proceed with disk repair after a few seconds if nothing is done).
The problem is that CHKDSK of Windows 7 is not compatible with NTFS drives formatted in Windows 10 : it will consider hibernation data as error, will try to repair it (it take ages) and by doing so it will corrupt the disk (Windows 10 won't boot anymore).
This is a major issue as I use a Windows 7 machine to repair / inspect some old harddrives. Is there a way to prevent Windows 7 to not automatically perform any CHKDSK at startup ?