Plz post back if Revo/MBMA finds sth or, your Norton detects sth. Well, you do not need to worry much if your Norton gives a Green check or tells you that "Your Are Protected".
That is next to nearly impossible. Even a malware or ransomware infection will not cause that. Are you running any other security alongside Norton? Do you run any sort of Tune Up Utility? Registry cleaner? Uninstaller? Are you running the latest version of Norton?
Are you using a preview build of Windows 10? If so this would explain the issue. Are you speaking that your shortcut disappeared? Or was Norton completely and totally uninstalled from your pc? Did you see it still listed under programs?
Thanks for the comments but I had already reinstalled Norton 360 and restarted Windows 10 and it is apparently working as it should. I assumed it was not Windows Defender that made N360 disappear but "something" did.
My concern was that it should be possible for N360 to disappear leaving my PC unprotected.
I don't know how long my PC was unprotected before Windows Defender filled the gap.
Moreover, Windows Defender just can't make your N360 disappear, just saying. Plz head to the following KB if you're new to Norton Product Tamper Protection.