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 listHow to Fix Command Prompt Not Opening as Administrator
You right-click Command Prompt and select "Run as administrator," but nothing happens, or it open...
BitLocker Stuck on Loading? Fix Without Recovery Key
You power on your PC, and instead of the usual login screen, you see a BitLocker recovery screen ...
Fix Windows Terminal Blank Tab on New Tab
You open a new tab in Windows Terminal and see nothing — just a blank, unresponsive window. This ...
Chrome Extension Troubleshooting Checklist
Chrome extensions can stop working for a variety of reasons. Before you assume the extension is b...
Fix Windows Terminal Permission Denied Running Script
When you try to run a PowerShell or Command Prompt script in Windows Terminal and see a "permissi...
Topic paths
Quick titles
Windows Activation Cache Location and Deletion GuideResolve Microsoft Teams Sign-In Error CXA20001How to Fix High Memory Usage in PowerShellResolve Teams Throttling Error Step by StepTroubleshooting PowerShell Service Unavailable ErrorChrome Profile Download Fails Error 4 Ubuntu GuideWindows Defender Offline Scan Not Starting in Windows 10OneDrive Settings Not Showing? Try These Fixes