Raven wallet disappears on Windows 10

I've been using Ravencore on my Windows machine for years and suddenly, it's gone.

Raptoreum Core went missing as well.

I assumed it might have been quarantined by Windows Defender, but no. That wasn't it.

The folders are still present on the file system, but cannot be started manually with a message that error opening block database.

Any idea of what's going on here?