So last night I decided to add an older HDD into my new desktop to... well add more storage since games now-a-days are HUGE, and I was running out on my current 2 drives (main SSD with Windows 10, and an HDD). I didn't realize that the older HDD had Windows 7 installed on it (completely forgot that it was there...), which I installed into a SATA3 slot 0 (other 2 were on slots 2 and 3 respectively because the graphics card made it difficult to use slots 0 and 1).
After booting it up, it started chkdsk and ran through all 3 drives. It kept saying hit any key to stop it but my keyboard and mouse drivers didn't load so couldn't stop it and I didn't want to break anything by forcing it off. After going through the drives it started doing things I couldn't see... eventually recorded a video on my phone to see that it was saying, "Deleting extended attribute set due to presence of reparse point."
At this point I was thinking it's deleting stuff from the Windows 7 since I thought Windows 10 was "set" (derp) as my main boot drive. 10-ish minutes later, to my surprise it boots into Windows 7 with the keyboard and mouse drivers still not loaded... So I hard shut down and remove Windows 7 drive to try booting into Windows 10 again.
Now I get the BSOD and none of the "advanced" recovery options work! I found a youtube video showing that running chkdsk again helps fix the problem - I ran it twice and nothing changed.
ANY HELP IS GREATLY APPRECIATED!
I got the free upgrade to Windows 10 and don't have any discs or images to fix this.