Thanks Igor and others for the solution. Microsoft Whiteboard also stopped working in June around the same time as a Microsoft update as well as Microsoft Store. Discord followed shortly thereafter. Microsoft Store I was able to restore by reinstalling but the other two apps are still non-functional. Unfortunately I forgot my Kaspersky Admin password so this fix is going to require a safe mode reboot and reinstall of Kaspersky. It would be ideal if Kaspersky had a fix for this which did not require modifying its program folder manually.