Fix Windows Defender Service Not Starting (Error 404)
If you see error 404 when trying to start Windows Defender, it usually means the service executab...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Activation Proxy Server Error
When you try to activate Windows and see an error about a proxy server, it usually means the acti...
Fix Task Scheduler Not Working After Windows Update
After a Windows update, you might find that scheduled tasks no longer run, or the Task Scheduler ...
Fix Teams Permission Denied Errors on Mac
If you see a 'permission denied' message when using Microsoft Teams on a Mac, the app usually can...
PowerShell Script Execution Disabled: How to Enable It
If you see an error like 'running scripts is disabled on this system' when trying to run a PowerS...
Fix Task Scheduler 'Network Unavailable' Error
If you've set up a scheduled task that runs a script or program requiring network access, you mig...
Topic paths
Quick titles
Troubleshooting 'Connection Refused' in Microsoft TeamsFix Remote Desktop Not Working After Cache ClearFix Remote Desktop Blank or Black Screen on Windows 10How to Fix Command Prompt Connection Timeout on Windows 10Troubleshooting Microsoft Store White Screen IssueTroubleshooting Connection Refused Error in Windows TerminalMicrosoft Store Version Mismatch After Update FixMicrosoft Store Cache Reset Guide