Fix Windows Update Clean Up Tool Not Working
You run Disk Cleanup, check "Windows Update Cleanup", but nothing happens—or the option is missin...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Defender File Locked During Scan
You run a Windows Defender scan and it reports that a file is locked and can't be scanned. This i...
Windows Defender Troubleshooting Checklist for Beginners
Windows Defender (now Microsoft Defender Antivirus) usually runs quietly in the background, but s...
Microsoft Store Not Downloading Apps: Fixes That Work
When the Microsoft Store refuses to download apps, you'll usually see a spinning circle, stuck pr...
Fix Windows Security Can't Connect to Server Error
When you see "Windows Security cannot connect to the server" while trying to sign in or access a ...
Fix Windows Defender Can't Connect to Microsoft Server
When Windows Defender shows 'Can't connect to Microsoft server', it usually means the antivirus c...
Topic paths
Quick titles
Fix Windows Security DNS Error Caused by Antivirus ConflictWindows Update Fails Due to DNS? Here's How to FixFix Windows Defender Not Starting Automatically with RegistryHow to Configure Windows Defender on macOSNginx Upstream Host Not Found Error GuideResolve 'microsoft-store' Command Missing in PowerShellFix Windows Security Cannot Connect to the AppFix Windows Store Stuck on Pending Download