Fix 'Port Already Allocated' Error in Windows Defender on Windows 10
You may see an error like "Windows Defender Firewall cannot use port X because it is already allo...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listBitLocker Version Mismatch Troubleshooting Checklist
If you see an error like "The version of BitLocker on this drive is incompatible with this versio...
Windows Security Log 4625 Failed Login Troubleshooting
When you see event ID 4625 in the Windows Security log, it means an account failed to log on. Thi...
Fix Task Scheduler Service Not Running After Windows Update
After a Windows update, you might notice that scheduled tasks no longer run. Opening Task Schedul...
Run VS Code as Administrator to Fix PowerShell Permission Denied
If you get "permission denied" errors when running PowerShell commands in VS Code, the problem is...
Fix Missing Command Prompt After Windows Update
After a Windows update, you might find that Command Prompt is missing from the Start menu, right-...
Topic paths
Quick titles
Reduce Windows Defender Startup Lag in Windows 10How to Fix SSH Host Key Verification FailedVMware Network Adapter Lost After Windows UpdateStop Windows Store Download Hanging Without ResettingChrome ERR_CONNECTION_REFUSED FixCommand Prompt Connection Error Troubleshooting GuideTroubleshoot SSL Certificate Warning Popup WindowsHow to Diagnose Chrome Issues with Log Files