Windows Update High CPU Usage Troubleshooting Checklist
If your system feels sluggish and Task Manager shows high CPU usage from TiWorker.exe
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix BitLocker 502 Bad Gateway Network Error
If you see a 502 Bad Gateway error when BitLocker tries to contact a network unl...
Fix GitHub Actions Permission Denied for Secret Access
When a GitHub Actions workflow fails with a "permission denied" error while trying to access a se...
Checklist for Windows Update Connection Refused Issues
When Windows Update fails with a "connection refused" or "server refused connection" error, it us...
Fix Windows Search Index Stuck on Loading Files
If Windows Search indexing appears stuck on "Loading files" and never completes, search results m...
Fix Microsoft Store Error 0x80072f8f (Network Issue)
When you open Microsoft Store and see error 0x80072f8f, the store won't load or download apps. Th...
Issue queue
SitemapMicrosoft Store Download Stuck? How to Fix
Antivirus Blocking Chrome? Here's How to Fix It
OneDrive Sync Queue Not Clearing
Fix Windows Update Service Not Starting Automatically
Fix 'Port Already in Use' Error with Windows Defender Firewall
OneDrive Error 0x8004de40 Version Mismatch Fix
Windows Installer Permission Denied: Quick Solutions
Guide to Serial Port Connections in Windows Terminal
Fix Windows Defender Not Starting Due to Antivirus Conflict
How to Fix Microsoft Store Rate Limit Exceeded Error
How to Solve Chrome Update Error Code 4
How to Fix PowerShell Startup Script Not Running
Antivirus Blocking Chrome? Here's How to Fix It
OneDrive Sync Queue Not Clearing
Fix Windows Update Service Not Starting Automatically
Fix 'Port Already in Use' Error with Windows Defender Firewall
OneDrive Error 0x8004de40 Version Mismatch Fix
Windows Installer Permission Denied: Quick Solutions
Guide to Serial Port Connections in Windows Terminal
Fix Windows Defender Not Starting Due to Antivirus Conflict
How to Fix Microsoft Store Rate Limit Exceeded Error
How to Solve Chrome Update Error Code 4
How to Fix PowerShell Startup Script Not Running