Hi! So, my computer just randomly wanted to not run CSP, and whenever I try to click on the shortcuts, it makes me find the file myself. I find it but it wouldn't run, so I deleted all related files and tried to install the latest setup. When I try to run the setup, it doesn't run. It stops where it says "The InstallShield Wizard is repairing CLIP STUDIO PAINT", without even loading. Is there any way to fix this problem? To those who've experienced it before or know what to do?

Important notes:
-It seems to only work when I plug in this USB I have, I don't have it installed on there, but it only works when I do. (the USB is now corrupted, probably why it wouldn't work in the first place)
-I have the CELSYS folders in my Documents before I uninstalled the files, not sure if that changes anything.
-I have windows 10.
-I've been trying to download the latest version and trying the second latest too.

Thanks so much for reading through this! I hope someone can answer soon, I have a lot of promises and I can't afford to not use CSP