Fix Windows Defender Error 0x800704ec
You see error 0x800704ec when opening Windows Defender or Windows Security. The message says auth...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Update 504 Gateway Timeout on Windows 10
If you see a 504 Gateway Timeout error when running Windows Update on Windows 10, it usually mean...
Fix PowerShell Execution Policy Errors: Permission Denied
When you see powershell script execution permission denied, it usually means PowerSh...
Fix 'Chrome Service Unavailable' Error on Mac
You open Chrome on your Mac and see the error: 'Chrome service unavailable' or 'Google Chrome ser...
Fix Chrome Sync Not Working After Windows 10 Update
After a Windows 10 update, Chrome sync may stop working—bookmarks, passwords, and settings won't ...
How to Fix Windows Security Not Working on Ubuntu
You're running Ubuntu and see an error that Windows Security isn't working. This usually happens ...
Topic paths
Quick titles
macOS Chrome Extensions Not Working? Here's the FixFix 0x80070422: Windows Defender Service Not RunningChrome Port Allocation Error GuideFix Windows Defender Performance Issues After UpdateBitLocker Setup Checklist: Avoid Port Allocation ErrorFix Remote Desktop Mac Full Screen Not WorkingChrome Authentication Failed on Mac: How to FixChrome Pop-Up Blocker Not Working? Try a Settings Reset