Situatie
The offline scan is in the Windows Security app in Windows 10. Click the Start button, type “Windows Security” into the search bar, and then hit Enter or click “Open.
Solutie
Then select Virus & threat protection, click “Scan options” under Current threat.
Select “Microsoft Defender Offline scan” to choose an offline scan. Click “Scan now” to perform the scan.
After you click this button, your computer will automatically reboot and begin scanning your PC for malware. The scan may take up to fifteen minutes. If any malware is found, you’ll be prompted to clean it up from within the Microsoft Defender Offline interface. If no malware is found, your computer will automatically boot back into Windows once the scan is complete.