Can't uninstall Avast, can't turn it on

AnxietyProne

Posts: 79   +0
I left my computer on today and when I came back to it it was at the Windows start screen. I put my password in and my computer locked up when loading, so I removed my battery to shut it down when I saw no other options. When I managed to turn it back on it ran windows check to repair files and it said that couldn't be done without a system restore, so I chose a point a few days back and now Avast refuses to turn on and refuses to uninstall, instead giving me an error message. Please help. D:
 
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