I just uninstalled Endpoint Protection, rebooted, and now Windows 10 Defender will not start. When I go to the Windows Defender Security Center – Virun and Threat protection shows that the service has stopped. When I select the Restart Now button I get a message saying “Unexpected error. Sorry, we ran into a problem.” I’ve tried going into Services and maually restarting it and there I get a message “Windows could not start the service, Erro 577 Windows cannot verify the digital signature for this file…”
Any ideas on what to try?