Fix PuTTY Network Error: Connection Refused on Ubuntu
When you try to connect to an Ubuntu machine using PuTTY and see "Network error: Connection refus...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Security Virus Scan Slow Performance
If your Windows Security (formerly Windows Defender) virus scan takes forever or slows down your ...
Fix Windows Defender Path Not Found Error 0x80070643
When you try to update or run Windows Defender, you might see error 0x80070643 with a message lik...
Fix 'Port Already in Use' Error When No Process Shows
You try to launch Chrome or a Chrome-based tool (like Puppeteer, Selenium, or a local dev server)...
Outlook Auto Start Not Working in Office 365: Fixes
You expect Outlook to open automatically when you sign into Windows, but it stays closed. This is...
How to Setup Command Prompt Logging to a Text File
When troubleshooting or documenting command-line tasks, saving Command Prompt output to a text fi...
Topic paths
Quick titles
Troubleshoot Windows Security App Hanging on StartupChrome Blank Screen No Error: How to FixTroubleshoot Microsoft Store Crash After UpdateTroubleshoot Chrome Profile Not LoadingFix 7-Zip 'Unsupported Archive Format' ErrorFix Windows Update High CPU Usage: Step-by-Step GuideCommand Prompt Proxy Error Troubleshooting ChecklistRemote Desktop Configuration Checklist for Secure Access