Software troubleshooting desk

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

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Fix Windows 11 Installation Assistant Stuck at 99%

Many users report that the Windows 11 Installation Assistant gets stuck at 99% during the upgrade...

Fix Nginx Permission Denied for Static Files

Common Causes

When Nginx returns a 403 Forbidden or 'permission denied' error for...

Fix Firefox Secure Connection Failed on Windows 10

You're browsing in Firefox on Windows 10 and get a full-page error: Secure Connection Fai...

Fix npm install Permission Denied (EACCES) Error
When you run npm install and see an error like Error: EACCES: permission denie...

Fix ERR_CERT_AUTHORITY_INVALID on Localhost When testing a local web app, you may see ERR_CERT_AUTHORITY_INVALID in Chrome or si...

Fix Windows 11 Wi-Fi No Internet by Disabling IPv6 If your Windows 11 PC connects to Wi-Fi but shows 'No internet' while other devices work ...

Issue queue Sitemap How to Activate a Python Virtual Environment Step by Step Nginx 502 Bad Gateway: Upstream Connection Refused Fix Resolve Docker Compose Port 8080 Already in Use Windows 10 Map Network Drive Access Denied: Troubleshooting Guide Resolve 'invalid parameter' in Nginx Config Test Docker Compose Secret vs Environment Variable: When to Use Each Git Detached HEAD: How to Undo and Recover pnpm Windows Installation Checklist: Step by Step Chrome Sync Not Working on Windows 10: Quick Fixes Reset Chrome When Extensions Won't Load Fix npm run build Failure Due to Node Version Mismatch How to Fix Git Clone Connection Timed Out Error Desk note Troubleshooting paths Home Windows FixesmacOS HelpBrowser IssuesOffice ToolsDeveloper ToolsCloud SoftwareSecurity ToolsBackup RecoveryNetwork ToolsDatabase ToolsAI ToolsProductivity AppsCLI ErrorsDocker KubernetesEmail ClientsFile Utilities