Microsoft Store SSL Certificate Error: Troubleshooting Checklist
You open Microsoft Store and see an SSL certificate error—maybe “ERR_CERT_AUTHORITY_INVALID” or a...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Chrome Failed to Start Due to Corrupted Profile
You click Chrome and nothing happens—or you see an error like "Your profile could not be opened c...
How to Fix PowerShell Authentication Failed Error
When you see an "Authentication failed" error in PowerShell, it usually means the system couldn't...
Fix Microsoft Teams 'File Locked' Error When Editing
When you try to edit a document in Microsoft Teams and see a 'file locked' or 'file in use' messa...
Fix OneDrive 'Token Expired' Sync Error
You open OneDrive and see a message like 'Token expired' or 'Sign in required' and files stop syn...
Set Windows Update Service to Run as Local System Account
If Windows Update fails with errors like 0x80070422 or the service won't start, the service might...
Topic paths
Quick titles
Windows Update High CPU Usage FixWindows 10 DNS Error on Update: Causes and FixesTroubleshooting Chrome Invalid ConfigurationHow to Reduce Windows Update CPU LoadMac Teams Calendar Sync TroubleshootingWindows Activation Proxy Bypass GuideHow to Fix 'Remote Repository Not Found' in GitHow to Resolve RDP Group Policy Failure