Thief
Rogue Theologian
some of your suggestions I have doneFirst delete your Browser history and see If that makes your RF issues better
IE 11 is not good, and the new system "Edge" is worse. Try running Google Chrome or FireFox and see if things get better
Are you running a security system, if so update it and scan your PC
When was the last time you ran Windows update
updates are forced by Windows
no relief