Software troubleshooting desk

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

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Fix Nginx Upstream Connection Refused Error

If you see upstream connection refused in your Nginx error logs, it means Nginx trie...

How to Fix Git Detached HEAD Error

You run git status and see "HEAD detached at" followed by a commit hash. Thi...

Fix Chrome ERR_CONNECTION_RESET Due to Proxy Settings

You're browsing in Chrome and suddenly pages won't load, showing ERR_CONNECTION_R...

Python Virtual Environment Not Activating in Git Bash: Fixes
You're in Git Bash on Windows, you run source venv/Scripts/activate, and nothing...

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

Fix Windows Update Service Not Running with Malwarebytes If Windows Update fails with error messages like "Service not running" or "Windows Up...

Issue queue Sitemap Fix Nginx Upstream Connection Refused Error Windows Security App Not Opening Command Prompt Fix Troubleshooting npm Build Errors How to Fix NET::ERR_CERT_AUTHORITY_INVALID from Chrome Policy Fix Git Merge Conflict Auto Resolve Failures How to Clear Firefox Cache to Fix Secure Connection Failed How to Enable Greyed Out Defender Real-Time Protection Fixing Python Dependency Conflicts in Poetry Troubleshooting npm Install Node Version Error How to Resolve Merge and Rebase Conflicts in Git Defender Real-Time Protection Not Working Fix How to Resolve Nginx 502 Bad Gateway in Docker Desk note Troubleshooting paths Home Windows FixesmacOS HelpBrowser IssuesOffice ToolsDeveloper ToolsCloud SoftwareSecurity ToolsBackup RecoveryNetwork ToolsDatabase ToolsAI ToolsProductivity AppsCLI ErrorsDocker KubernetesEmail ClientsFile Utilities