Fix 'Windows Defender Firewall Has Blocked' Error
You see a notification that Windows Defender Firewall has blocked an app or feature. This usually...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesWindows Update Stuck at 100% After Restart: How to Fix
You restart your PC after a Windows update, but it hangs at "100% complete" for 10 minutes or mor...
How to Fix 404 Not Found Error in CMD
Seeing a "404 Not Found" error in Command Prompt usually means the command or file you're trying ...
Fix Chrome Port Already Allocated Error (ERR_UNSAFE_PORT)
When Chrome displays an error like ERR_UNSAFE_PORT or a message that a port is alrea...
Windows Terminal High Memory Usage: Causes and Fixes
Windows Terminal can sometimes consume more memory than expected, especially after long sessions ...
Fix Windows Activation Path Not Found Error 0x8007007b
When you see "Windows activation path not found" with error code 0x8007007b, it usually means the...
Issue queue
SitemapWindows Update Authentication Error in Enterprise
Microsoft Store Setup Checklist for New PC
Fix Windows Update Migration Not Working After Feature Update
Step-by-Step Guide to Fix Chrome DNS Error
Fix Microsoft Teams Microphone Not Detected in Windows
Fix Teams Permission Denied: File, Camera, Mic
How to Fix Windows Terminal Not Opening on Mac
How to Repair Windows Activation Module Error
How to Fix 'Security Module Not Found' in Windows Security
BitLocker Token Expired: Step-by-Step Recovery
Chrome Extension Troubleshooting Checklist
Step-by-Step: Using Windows Security Migration Tool
Microsoft Store Setup Checklist for New PC
Fix Windows Update Migration Not Working After Feature Update
Step-by-Step Guide to Fix Chrome DNS Error
Fix Microsoft Teams Microphone Not Detected in Windows
Fix Teams Permission Denied: File, Camera, Mic
How to Fix Windows Terminal Not Opening on Mac
How to Repair Windows Activation Module Error
How to Fix 'Security Module Not Found' in Windows Security
BitLocker Token Expired: Step-by-Step Recovery
Chrome Extension Troubleshooting Checklist
Step-by-Step: Using Windows Security Migration Tool