Error codes

0xc0000428

Windows cannot verify the digital signature of this file

What it means

A boot driver or update does not have a signature Windows trusts, so the boot process stopped on purpose.

Common causes

• An unsigned or patched driver
• A test-signing mode left on
• A failed update that left mixed file versions

How to fix it

1. Choose "Disable driver signature enforcement" once from the advanced boot menu to get in.
2. Uninstall the driver or tool you added last, then restart normally.
3. Run bcdedit /set testsigning off in Terminal (Admin) if test signing was enabled.
4. Open Terminal (Admin) and run sfc /scannow, then DISM /Online /Cleanup-Image /RestoreHealth. Restart afterwards.