Software troubleshooting desk

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

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Fix Explorer.exe Keeps Restarting in Windows 10

If your File Explorer (explorer.exe) keeps restarting on Windows 10, you'll see the taskbar a...

Fix Error 0x80070002 in Windows Update Registry

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

Fix Chrome Certificate Error Invalid Authority on Mac

You're browsing in Chrome on a Mac and suddenly see a warning: Your connection is not...

How to Fix Git Detached HEAD State and Undo Changes
You run git status and see something like "HEAD detached at abc123". This ha...

How to Fix Git Push Rejected (Non Fast-Forward Error)
When you run git push and see ! [rejected] with non fast-forward<...

Windows 11 Installation Assistant Stuck at 99%: How to Reset and Finish You're upgrading to Windows 11 using the Installation Assistant, and it gets stuck at 99% for...

Issue queue Sitemap Troubleshoot Docker Network Not Found for Containers Fix npm install Permission Denied (EACCES) Error Docker Disk Usage Check and Cleanup Guide Node Version Downgrade Guide Fix Cloudflare DNS Propagation for New Domains How to Resolve npm run build Webpack Issues Fix Windows Update Service Not Running for System Restore Taskbar Icons Disappeared After Uninstall – Quick Fixes DNS Probe Finished NXDOMAIN Fix Guide Resolve Cloudflare 521 Error – Server and Proxy Guide How to Fix Git Index Lock File Exists Error Step-by-Step Cloudflare Wildcard Setup Desk note Troubleshooting paths Home Windows FixesmacOS HelpBrowser IssuesOffice ToolsDeveloper ToolsCloud SoftwareSecurity ToolsBackup RecoveryNetwork ToolsDatabase ToolsAI ToolsProductivity AppsCLI ErrorsDocker KubernetesEmail ClientsFile Utilities