I've tried all I could think of and research. My main PC when it boots up now it takes forever to do anything. Like opening the browser or an app. This has been going on for over a week. I get the circle mouse icon non stop and just seems like explorer is possessed. I've scanned for viruses, done clean boot, I've reverted back a few versions. Updated windows again. I'm trying not to reset as I'd have to reinstall all my apps again so leaving that as last resort. I've also done command prompt for scan disk, and restore health. In Safe mode PC works better. I've also installed Windows 10 again with the Windows Media Tool. And installed with leaving my apps installed. That didn't help If I turn PC on and wait about 15 minutes I can use PC but if I install an app takes forever to be able to use. Anything you can't think of or suggest before I reset. It's a fairly new PC about 2 years old, It has plenty of Ran and 1TB HDD.