Fix Windows Defender Stuck Loading Error 0x80070422
If Windows Defender is stuck loading and you see error 0x80070422, the service may be disabled or...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Search Access Denied After Update
After a Windows update, you may see "Access Denied" when trying to search files, folders, or sett...
Fix Windows Defender DNS Error Not Working
You open Windows Security and see a warning that Windows Defender isn't working, often accompanie...
Fix WinSCP Permission Denied When Downloading Files
You're connected to a remote server via WinSCP, browsing files fine, but when you try to download...
How to Fix Windows Defender Authentication Failed Error
If you see "Authentication failed" when opening Windows Defender or trying to run a scan, it usua...
Fix Windows Update Access Denied Registry Error
When you try to edit the registry to fix Windows Update and get an 'access denied' error, it usua...
Topic paths
Quick titles
Windows Defender Authentication Failed Error TroubleshootingTroubleshoot Microsoft Store Login Problems in Windows 11How to Fix wuauclt Command Not FoundTroubleshooting Git SSH Key Invalid ErrorOutlook Won't Load Past Profile Screen – TroubleshootingWindows Defender Error 0x80073b01 Troubleshooting GuideFix Windows Activation SSL Certificate ErrorResolve Maven 401 Unauthorized in Dependency Resolution