Software troubleshooting desk

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

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Fix Putty Connection Refused on Port 22

You try to connect to a remote server with Putty on port 22, but you get 'Connection refused'. Th...

How to Fix Windows Security Not Working

Windows Security (formerly Windows Defender) may fail to open, show a blank page, or refuse to up...

Fix Docker Compose .env File Not Found on Mac

You run docker compose up on your Mac and get an error like WARNING: The VAR v...

Fix Windows Activation Port Error 0x80072efd
If you see error 0x80072efd when trying to activate Windows, the message often says something lik...

Fix Remote Desktop Auto Start Not Working in Windows 11
You've set Remote Desktop to start automatically, but after a Windows 11 restart, the service or ...

Fix Windows Search Permission Denied Registry Error
If you see a 'permission denied' error when trying to modify registry keys related to Windows Sea...


    Issue queue
Sitemap
How to Get Windows Search Offline Installer Without Internet
Windows Search SSL Certificate Error Checklist
Slow PC Due to Windows Security? Here's Help
How to Fix Permission Denied in GitHub Actions Checkout
How to Set Up SSL Certificate for Localhost on Windows 11
Setting Up KMS Activation for Windows 10
BitLocker Recovery Key Backup Guide
How to Fix Microsoft Store Error 0x80073cf3
Windows Activation Timeout: Clear DNS Cache Step-by-Step
How to Fix Cloudflare DNS Not Resolving on Mac
PowerShell Module Not Found Permission Denied Guide
Fix Windows Search Token Expired Registry Error
Desk note

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