I have a very noob type question, I searched here and Google but did not really find my answer. I am on Windows 10 2004 with 8 GB ram on a basic laptop. I have used several AV programs over the last 6 months, including WD, Bitdefender Free and the paid Bitdefender Antivirus Plus. I also tried out KSC Free a couple of times in the last 3 or 4 months. I tried out the different AV's looking for one I liked well enough to keep. I downloaded Avast Free a few days ago and so far it is working fine. Before I downloaded Avast I did a system restore back to the previous version of my laptop with WD. Then I installed Avast and I believe I will keep it.
I am wondering if it is necessary to reinstall Windows again since I have changed AV's so many times recently, or is my system restore back to a known good point all that is really needed? My laptop runs fine now and I have no trouble with the internet speed or running programs. I don't have a system image but I do keep copies of important files like pictures, music, and documents on flash drives so if I did need to reset or re-install Windows that would not be a problem. The Avast Cleanup scan said I have some 200 or so broken registry files, which is what prompted me to think about resetting Windows.
Thanks for any input on this.
Cpt. Holly