I had that issue and reinstalled WSP from the download and instructions below (copied from page 9 of this thread by Enric Cortes). It worked. I did do a couple clean installs, resets after and never had an issue. Maybe do this fix first?
Reinstall Windows Security Platform with the new update. Download from this link the folder that contains the application:
https://app.box.com/s/8br9g6arlce8pgxx5hmh6t1jcv4zj2s0
Now follow these steps:
- Create a restore point first
- Unzip the downloaded ZIP file on the Desktop
- Navigate to the location C:\Windows\System32\SecurityHealth to take ownership of that folder:
Properties > Security > Advanced Options > Change > Administrators
Check the "Replace owner on subcontainers and objects" box and click Apply.
In the "SecurityHealth Permissions" window select Administrators > Full Control. Apply.
- Copy the "1.0.2207.20002-0" folder on the Desktop to the SecurityHealth folder
- Open the folder and run the application "Microsoft.SecHealthUI_8wekyb3d8bbwe.appx" as administrator to update.
- Restart the computer.