I encountered a problem randomly that most likely started last night (I'll explain why).
I was using my computer as usual; I downloaded a series of a television show and updated an online game. I shut off my computer before I went to sleep for the night. Next morning, I booted up my computer and I received the infamous frozen "Starting Windows" screen for nearly 30 minutes. Then I rebooted the computer to the BIOS menu and set the mode from LEGACY to UEFI just for the heck of it. I'm not sure if this fixed it, but it managed to get out off "Starting Windows" after a bit and led me into disk check for my secondary drive for et cetera programs, movies, and games.
After logging into Windows 7, I felt like watching a TV show on my hard drive and opened it up in MPC-HC. It proceeded to stutter constantly and wouldn't play at all after a few seconds in. This isn't a MPC-HC problem because I tried it in VLC and MPV and also encountered similar problems. It happened to nearly all my TV shows. Also, games like osu! crash after you get to the song menu, so the problem must be universal for most media files on my TB hard drive.
I tried system restoring to the day before it began, but I also encountered the "Starting Windows" error. I chose the same procedures as earlier, except I changed UEFI to LEGACY in my BIOS menu. I still have the same problem. I'm not sure how I should tackle this as it could be caused by practically anything.
I'm not a expert at computer knowledge, so I would be very grateful of your input. Thank you.