As I asked the other replier do I follow these instructions from the control panel in or out of safe mode?

Lastly my 2 question which was not addressed, If I leave whatever is in sandbox in and uninstall Avast - will that uninstall everything in sandbox? If I remember correctly it was a Java program but couldn’t find anything newly installed on my puter for java since 08, so it’s probably a rough program. However when I did a micro care one scan it came up with 3 java files marked as servier so I deleted it from the microsoft scan platform. Don’t know if Avast missed it or micro found it in sandbox?