Recently I've decided to buy my first SSD and install Windows 10 on it, and use one of my older HDs to install Windows 7, for dual-booting from separate drives. Both drives are connected through SATA through a 3 year old motherboard. All drives are GPT formatted.
The very bizzare thing that happened to me was when I booted into Windows 7, and saved some files in the Documents folder of my Windows 10 SSD system, assuming that next time I'm gonna be able to boot Windows 10 and see those files in my documents folder. To my surprise Windows 10 booted after an automatic system repair, entered a boot loop, not able to repair itself, and killed my motherboard. After that my motherboard entered a boot loop without even showing the flash screen.
After 2 hours of playing around with it I managed to recover my mobo using its backup bios chip, reinstalled my Windows 10, and everything was working fine. I then did the same thing, cross copying files while booting from Win7/10, and each time this resulted in corrupt drives and systems.
What am I missing there? Back in the old days of Windows XP you could easily remove your OS drive, put in an enclosure, connect through USB to another computer and write files to it, and that drive would boot just fine after placing it back.
Being able to store different documents cross-drive and symlinking them from each system would save me a lot of hassle and disk space.
Thanks for any help.