How to Fix Windows Defender Error 0x800704ec
When you try to open Windows Defender (now called Microsoft Defender Antivirus) and see error cod...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Chrome Not Working with Proxy on Ubuntu
You configured a proxy in Ubuntu, but Chrome ignores it or throws connection errors. This often h...
Fix Windows Update Access Denied Due to Permission Settings
You try to run Windows Update, but get an 'Access Denied' error. This usually means the update pr...
Fix Windows Defender 504 Gateway Timeout Error
You open Windows Security and see a '504 Gateway Timeout' error. This usually means Windows Defen...
How to Fix Windows Activation Connection Refused Error
When you try to activate Windows 10 or 11 and see "connection refused" or "can't connect to activ...
Windows Defender on Mac: A Troubleshooting Guide
If you're running Windows Defender on a Mac via virtualization or Boot Camp, you may run into iss...
Topic paths
Quick titles
Fix OneDrive SSL Certificate Error and Permission DeniedFix Windows Security Migration Error 0x80070005Fixing Outlook Version Mismatch with Exchange 2019Troubleshoot GitLab Runner Not Running JobsFix Task Scheduler on Mac: No Such File or Directory ErrorFixing SSH Connection Timeout Due to Network LatencyPowerShell Command to Identify File Lock OwnerResolve Windows Defender Token Expired in Command Prompt