How to Configure Windows Defender Firewall Settings for a Network
If you're having trouble with network connectivity or need to allow an app through the firewall, ...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Outlook 'Access Denied to Public Folder' Error
When you try to open a public folder in Outlook and get an 'Access Denied' message, it usually me...
Fix Windows Defender Service Not Starting (Error 0x80070422)
You try to start Windows Defender but get error 0x80070422: “The service cannot be started, eithe...
Fix Command Prompt 502 Bad Gateway Due to DNS Issues
If you're seeing a 502 Bad Gateway error while using Command Prompt to access a web service or AP...
How to Identify High CPU Usage in Chrome Using Task Manager
Chrome can sometimes consume a lot of CPU, making your computer slow or loud. The built-in Task M...
Microsoft Store Not Working on Mac Sonoma: Fixes
If you're running macOS Sonoma and the Microsoft Store won't open, keeps crashing, or fails to do...
Topic paths
Quick titles
BitLocker Recovery Key Not Working? Try These FixesPython 3.9 pip Install No Distribution Found FixHow to Unstick Windows Update Configuring ScreenOutlook Not Receiving Emails but Can Send: Fixes to TryTroubleshooting RDP Access Denied ErrorsNode Version Mismatch Troubleshooting GuideFix Network Issues with netsh and ipconfigTroubleshooting PowerShell 404 Errors