Bug Unity just dosen't work at all.

As aforementioned in the title, Unity has ceased to work at all on any editor builds before 2022. This has been causing a lot of problems for me for a while now, as I use version 2019.4.31f1 for everything I work on. I took a break from using if on 2021 and it has ceased to work since. I've deleted and reinstalled my editor type, but no dice. The Hub even said it still existed in it's list despite it being deleted. I've been racking my head at this for a few days now, and I've given up on trying anything else. Please help me! I use a windows 11 MSI prebuilt PC for my work.