[Windflier]

Just tried to update Windows 10 and got this error message:

Security Intelligence Update for Windows Defender Antivirus - KB2267602 (Version 1.301.876.0) - Error 0x80070643

[daniel1212]

Then see `Fix Windows Update errors by using the DISM or System Update Readiness tool

1. Run built-in windows troubleshooting tool:

Control Panel\All Control Panel Items\Troubleshooting\ System and Security\Fix problems with Windows Update\Advanced\Run as administrator:

2. Run System Update Readiness Tool  to fix the issue automatically.

3.Run the command “sfc /scannow” with administrator right to check the health of system files.

4. Perform a Clean Boot  and manually update again.