How to Fix Windows Update 404 Not Found Error
When Windows Update returns a 404 Not Found error, it usually means the update server can't locat...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Search 504 Gateway Timeout Error
You open Windows Search, type a query, and instead of results you see a 504 gateway timeout error...
Fix Windows Security High CPU Usage During Malware Scans
You run a malware scan in Windows Security (formerly Windows Defender) and notice your CPU fan ra...
Microsoft Teams Configuration Checklist for Administrators
Rolling out Microsoft Teams can hit snags if core settings aren't in order. This checklist helps ...
Fix OneDrive Sync Pending After Windows Update
After a Windows update, you might open OneDrive and see files stuck with a "Pending" status. This...
Fix Windows Update Not Installing Due to Low Disk Space
If Windows Update fails to install and you see an error about insufficient disk space, the fix is...
Topic paths
Quick titles
How to Resolve Windows Update Connection RefusedReduce BitLocker Memory Usage on Windows 10Outlook Modern Authentication Token Expired: SolutionsHow to Start Windows Security ServiceFix Permission Denied in Windows Task SchedulerWindows Security Service Failed to Start: GuideHow to Get Windows Search on UbuntuFix High Memory Usage in Remote Desktop After Windows Update