- Download SecurityHealthSetup from: https://definitionupdates.microsoft.com/download/DefinitionUpdates/windowssecurity/1.0.2306.10002/x64/securityhealthsetup.exe
- Right click on securityhealthsetup.exe and run as administrator. You should see a couple of command windows flash.
The Windows Security UI should work straight away. If not, restart the computer and give the system a few minutes to initialize before checking.