Fix Windows Certificate Error 0x800b0109
When you see error code 0x800b0109 in Windows, it means the operating system cannot verify a digi...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix Microphone Permission Denied in Microsoft Teams
When Microsoft Teams shows a 'microphone permission denied' error, you can't hear yourself in cal...
How to Fix Node Version Mismatch in package.json
When you run npm install or npm start and see a warning like "The engin...
Windows Defender Blank Screen: Troubleshooting Steps
You open Windows Security and see a blank white or gray screen. The interface doesn't load, and n...
How to Fix Reset Windows Search Connection Refused
When you try to reset Windows Search (often via Settings > Search > Searching Windows > Reset), y...
Fix GitHub Actions Cron Schedule Not Running
You set up a scheduled workflow with on: schedule in your GitHub Actions YAML, but t...
Issue queue
SitemapEnterprise BitLocker Setup Checklist
Fix Chrome Authentication Failed Login Error
Fix Microsoft Teams Auto Start Not Working After Update
How to Fix Docker WSL Connection Issues
Fix Microsoft Store Not Opening
How to Fix Nginx Rsync Permission Denied
504 Gateway Timeout Troubleshooting with Curl
How to Fix Search Not Starting After Windows Update
Troubleshoot Remote Desktop No Error Message
How to Fix npm Not Found After Installing Node.js
Windows Defender Firewall Blocking Connection: Troubleshooting Guide
How to Break Windows Defender Login Loop
Fix Chrome Authentication Failed Login Error
Fix Microsoft Teams Auto Start Not Working After Update
How to Fix Docker WSL Connection Issues
Fix Microsoft Store Not Opening
How to Fix Nginx Rsync Permission Denied
504 Gateway Timeout Troubleshooting with Curl
How to Fix Search Not Starting After Windows Update
Troubleshoot Remote Desktop No Error Message
How to Fix npm Not Found After Installing Node.js
Windows Defender Firewall Blocking Connection: Troubleshooting Guide
How to Break Windows Defender Login Loop