How to Allow an App Through Windows Defender Firewall
If an app can't connect to the internet or network, Windows Defender Firewall may be blocking it....
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix OneDrive 502 Bad Gateway After Update
After a recent update, some users see a '502 Bad Gateway' error when trying to access OneDrive. T...
Chrome Profile Invalid Configuration Checklist
You open Chrome and see a message that your profile configuration is invalid. This usually means ...
Fix 'Access Denied' Errors After Windows Update
After a Windows update, you might see "Access Denied" errors when trying to open Windows Security...
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...
How to Fix Windows Defender Service Not Running
If you see a message that Windows Defender is not running or the security center shows it's off, ...
Topic paths
Quick titles
Setup Windows Security to Avoid Port Allocation ConflictsTroubleshoot Windows Update Assistant Failure in Parallels or Boot CampFix OneDrive Sync Permission Denied on Windows 11Windows Update Rate Limit Error: Troubleshooting ChecklistRemote Desktop Configuration Tips for Dependency ErrorsFix Remote Desktop Login Issues by Resetting CredentialsHow to Resolve Windows Security Dependency ConflictHow to Access Microsoft Store on Mac