How to Fix Windows Defender Firewall Blocked App
You try to open an app, but it either won't start or can't connect to the internet. A common caus...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix OneDrive 504 Gateway Timeout Error Code
If you see a 504 Gateway Timeout error when using OneDrive, it usually means the server is not re...
Fix Windows Security Rate Limit Error: Can't Open App
You try to open Windows Security or a protected app, and instead you see an error message like "R...
Fix OneDrive Error 0x8007016a: Cloud File Provider Not Running
OneDrive error 0x8007016a usually appears when you try to open or sync a file. The message says “...
How to Fix Windows Defender Version Mismatch Error
You may see a Windows Defender version mismatch error if the security intelligence definitions on...
How to Fix Chrome Not Downloading Files on Mac
You click a download link in Chrome on your Mac, and nothing happens—or the file starts but never...
Topic paths
Quick titles
Troubleshooting Connection Refused Error in Windows TerminalMicrosoft Store Configuration Reset: Fix Common IssuesFix Connection Refused Error in Chrome ProfileHow to Solve Access Denied in Windows Security Post-UpdateWindows Update Sync Issue TroubleshootingWindows Terminal Slow to Open: Troubleshooting GuideVisual Studio Installer Configuration Failed After Restart: FixHow to Fix Remote Desktop Invalid Configuration After Windows Update