Fix 'Windows Defender Firewall Has Blocked' Error
You see a notification that Windows Defender Firewall has blocked an app or feature. This usually...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listDocker Container Exit Code 0: Why It Restarts and How to Fix
You start a Docker container, it runs briefly, then stops with exit code 0. But when you check it...
Fix Command Prompt Can't Connect to SQL Server
If you're seeing errors like 'Cannot open server 'hostname' requested by the login' or <...
Fix Microsoft Teams Version Mismatch Sync Problem
If you see sync errors or missing data in Microsoft Teams, a version mismatch between your deskto...
Enable Windows Security Manually When It Fails to Start
If Windows Security (formerly Windows Defender) fails to start, you may see an error like "This a...
Fix Microsoft Store Error 0x80073cf3
When you try to install or update an app from the Microsoft Store, you might see error 0x80073cf3...
Topic paths
Quick titles
Fix OneDrive Permission Denied When Syncing FilesMicrosoft Store File Locked: Troubleshooting ChecklistFix Task Scheduler Auto Start Not Working in Windows 11How to Refresh Windows Security TokenWindows Activation Stuck on Loading Screen – Troubleshooting GuideWindows 10 Update Error 502 Bad Gateway SolutionsFix OneDrive Repeated Credential PromptsWindows Update Service Disabled by Antivirus Fix