My PC may have a virus. What should I do?
A couple months back I noticed my PC behaving weirdly, browsers I was using were consuming a lot of memory (Firefox - 1.4gb+, Chrome - 2gb+) without much tabs open, but I didn't think much of it at the time. A few weeks ago, I tried to do a scan with Windows Defender to see if it was a virus that was causing these problems, but I wasn't allowed entry to the Virus and Threat Protection part of Windows Defender because my "IT administrator had limited access to some areas of this app". I've also noticed some other weird things, like my laptop performing much slower, my cursor being set larger than the default every time I restart my laptop or go into full-screen on any app, the blue loading circle next to my cursor popping up even when I'm not doing anything, my fans always being very loud, my battery draining extremely quickly, and my wallpaper randomly being set to black.. I'm not very tech-literate so I'm kind of lost on what to do. Re-installing windows and choosing not to keep all my files seems like the most logical option for me (using the windows option, no USB). I'd greatly appreciate any advice!
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