hi AJS2017, this sounds like we may need to engage the Dell teams to assist with the virus removal to get you into a good state to restore your system.
have you reached out to our teams? This is a paid-for service, and more information is available here:
Dell Data Security
Need immediate help with a Dell Data Security issu? Please call Dell Data Security Support @ +1.877.459.7304 Ext. 4310039