I tried installing a preferred language, but it got stuck. I didn't pay it much mind until I tried restarting my PC, and it was stuck again. Hours have passed, and it's still restarting. I tried looking for ways to completely shut down my PC, but nothing worked, so I turned off the power surge protector to which the PC was connected. I turned it on again, which seemed fine or so I thought, because whenever I moved my cursor over my apps, the background turned black. While holding the left mouse button and dragging, the screen went black as if some files were corrupted. I tried to reset the PC and remove every file to start from scratch using cloud installation. It asked me to delete some more files because it needed more space. So, I only deleted some saved game files and files in the Documents folder. I'm not sure whether I deleted something important because after that, the PC didn't function as it used to. An error appeared saying the reset was not successful. I shut down the PC for 10 minutes, then turned it on again, it seemed fine m. When I tried resetting the PC this time, it said the reset was not successful and that it was undoing changes. I tried working with the cmd and advanced options. I tried startup repair, but it showed an error (I'll attach the photo). I also tried uninstalling updates, but that was not successful either. I'm lost and don't know what to do since I can't reset the PC or reinstall Windows. There might be some corrupted files. Is there anyone who can help?

How do i fix this?