Fix Windows Defender Error 0x80073b01: Complete Guide
Quick Fix Windows Defender error 0x80073b01 means the security service can’t start properly. To fix it: Open Command Prompt as Administrator, run sfc /scannow, then run DISM /Online /Cleanup-Image /RestoreHealth. Restart your computer and try Windows Defender again. This repairs corrupted system files causing the error. What Is Windows Defender Error 0x80073b01? Error code 0x80073b01…