I was playing a game, alt-tabbing froze my system so I waited a bit and then rebooted by using the button on the case, since I couldn't do differently.
It now throws an error when mounting a drive: error mounting /dev/sdb1 at /media/user/local disk 1: unknown error when mounting (udisks-error-quark, 0)
This drive doesn't have anything I was using on it, since it's a media storage drive. I booted up Windows on my second drive and it can see and access this one without problems. How to fix?
Can you reformat that drive as exFAT? That should remove NTFS as being a reason to keep Windoze around (and even if you do need Windoze, it should be able to read that format fine as well).
Yes, I just learned I can use a different filesystem to avoid (or at least minimize) these issues in future. I tried formatting a portable HDD and I could only pick FAT, that should be OK since I picked "Linux compatibility" or something like that in the format wizard!