desde powershell elevado:
- sfc /scannow
- Dism.exe /Online /Cleanup-Image /CheckHealth
- DISM.exe /Online /Cleanup-image /Scanhealth
- DISM.exe /Online /Cleanup-image /Restorehealth
- Dism.exe /Online /Cleanup-Image /startComponentCleanup
útil para verificar por troyanos faking names like: SecureBootEncodeUEFI.exe
fuente: https://answers.microsoft.com/es-es/windows/forum/all/estaba-con-mi-pc-y-de-repente-apareci%C3%B3-una/c8ce7946-3b79-4478-859a-9b9fa93aec66