I've finally ended the pain, and got my butters.Spoiler
I finally got another computer of mine working, so I decided to attempt running the game on it. It ended up working! Saves and everything.
The game wasn't that bad, took me just over 5 hours to get the ending. Took longer than I wanted, but I got it done, started from the 'Mediocre ending.'
I've pretty much given up on it at this point, unless you got anything else.
Got the Dream No More achievement in Hollow Knight