Take the name of any file that shows in the Task Manager and google the name. That will identify it & let you know if it's essential, or can be shut down. You would also see a warning if one of the active files is a security risk.
Thank you to everyone who responded with help and suggestions. I finally got Sentinel to load now I just have to figure out how to use the damn thing. Will try the SDS200 first and then the 536. For someone who has used scanners since my teens (now 65) Things sure have went over my head LOL