In response to post #76810703. #77394508, #77676363, #77698568 are all replies on the same post. I used Avast for around 2 years and found myself reinstalling Windows 2 times because of false positives on system files which after that had been removed, now I stick to Malwarebytes, it costs money for more protection than just weekly scans but if you donacdum on the internet that should be enough