Software troubleshooting desk

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

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Fix Git 'index.lock' File Exists Error in SourceTree

If you use SourceTree and see an error message like fatal: Unable to create 'path/to/.g...

Windows Security App Not Working After Update: Fixes
After a Windows update, the Windows Security app may fail to open, show a blank window, or displa...

How to Resolve Git SSL Certificate Error: Unable to Get Local Issuer
If you see fatal: unable to access 'https://...': SSL certificate problem: unable t...

Fix Remote Desktop Connection Failed Due to Group Policy
You try to connect to a remote desktop, but it fails with an error like "The connection was d...

Fix Nginx Upstream Connection Refused in Docker
You have Nginx running, either on the host or in a container, proxying to another Docker containe...

Fix ERR_NAME_NOT_RESOLVED on All Sites in Chrome
If Chrome shows ERR_NAME_NOT_RESOLVED on every site you visit, it means your bro...


    Issue queue
Sitemap
Fix Python Not Recognized in CMD but Working in Anaconda
Fix Nginx 502 Bad Gateway Docker Permission Denied
Chrome STATUS_ACCESS_VIOLATION Error: Causes and Solutions
Troubleshoot Cloudflare Origin Certificate Mismatch
Explorer.exe Crash Loop: Troubleshooting Guide
Troubleshooting pnpm ERR! Unsupported URL Type
Bypass pip Externally Managed Environment Error
Python 3.11 pip Externally Managed Environment Fix
Git LFS Setup Guide for Large Files
Setting Node.js --max-old-space-size for Memory Errors
Node.js Breakpoints Not Hitting in VS Code Debugger
Troubleshoot Windows Update Service Not Starting
Desk note

    Troubleshooting paths
Home
Windows FixesmacOS HelpBrowser IssuesOffice ToolsDeveloper ToolsCloud SoftwareSecurity ToolsBackup RecoveryNetwork ToolsDatabase ToolsAI ToolsProductivity AppsCLI ErrorsDocker KubernetesEmail ClientsFile Utilities