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 Security App Not Starting on Windows 11

You click the Windows Security icon or try to open it from Settings, but nothing happens. The app...

How to Fix Cloudflare 521 Error with Wildcard Subdomains

If you're seeing a Cloudflare 521 error on a wildcard subdomain (e.g., *.example.com), the or...

Remove Large Files from Git History

If your Git repository is bloated because a large file was committed and later removed, the file ...

Fix DNS Probe Finished NXDOMAIN Caused by Antivirus Blocking

You try to load a website and see DNS_PROBE_FINISHED_NXDOMAIN in Chrome, or simi...

How to Fix Git Push Rejected Non-Fast-Forward

You run git push and get an error like ! [rejected] main -> main (non-fast-...

Fix Windows 11 Installation Assistant Stuck at 99%
You're running the Windows 11 Installation Assistant, it reaches 99%, and then nothing happen...


    Issue queue
Sitemap
Install Python Packages Without Sudo
How to Fix Node Version Mismatch in a Project
Fix pnpm install ETIMEDOUT Errors: Network & Config Checks
How to Fix Ethernet Connected but No Internet on Windows 11
How to Handle Large Files in Python Without Memory Errors
Windows 11 Assistant Stuck: Disk Space Troubleshooting
Troubleshooting Cloudflare 521 Error After DNS Change
Fix VS Code Node.js Debugger Breakpoint Issues
Restore Missing Taskbar Icons in Windows
Fixing Nginx 502 Bad Gateway in Docker Networks
Running Scripts in VS Code: Fix Permission Denied
Docker Compose ENV Not Passed to Entrypoint: Fix
Desk note

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