Software troubleshooting desk

Practical fixes for tool errors, setup blocks, and workflow issues.

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Fix Chrome Black Screen Flickering from Hardware Acceleration

If Chrome shows a black screen or flickers when watching videos, scrolling, or opening menus, har...

Fix Firefox Secure Connection Failed After Update

After a Firefox update, you might see a "Secure Connection Failed" error when visiting we...

Fix Windows 11 Installation Assistant Stuck at 99% SFC Scan

You're upgrading to Windows 11 using the Installation Assistant, and it hangs at 99% while ru...

Fix Error 0x80070002 in Windows Update Registry

Error 0x80070002 during Windows Update typically means the system cannot find a required file. Th...

Fix 'pip install' Permission Denied on Ubuntu

When you run pip install somepackage on Ubuntu and see a Permission denied

Fix Git SSL Certificate Problem: Unable to Get Local Issuer on GitHub
If you see fatal: unable to access 'https://github.com/...': SSL certificate proble...

Issue queue Sitemap DNS Probe Finished NXDOMAIN: Troubleshooting Checklist Resolve Windows 11 Blue Screen Caused by Cumulative Update How to Fix UnicodeDecodeError in Python JSON Parsing Windows 11 Install Assistant Stuck at 99% Network Fix Node Sass Build Failed: How to Upgrade Node Version Resolve Docker Exit Code 255 Network Missing Chrome High RAM Usage Fix for Windows 10 Git Merge Unrelated Histories – Causes and Solutions Fix Blank Terminal in VS Code Remote SSH Fix Git SSL Certificate Problem: Unable to Get Local Issuer Certificate Python Socket UnicodeDecodeError Troubleshooting Guide pnpm Not Working with New Node.js Version: Troubleshooting Guide Desk note Troubleshooting paths Home Windows FixesmacOS HelpBrowser IssuesOffice ToolsDeveloper ToolsCloud SoftwareSecurity ToolsBackup RecoveryNetwork ToolsDatabase ToolsAI ToolsProductivity AppsCLI ErrorsDocker KubernetesEmail ClientsFile Utilities