Knowledge base for software setup, errors, and daily tool work.

How to Clear SSH Known Hosts and Fix Host Key Verification Failed

How to Migrate Command Prompt Settings to a New Computer

When you set up a new computer, you might want to keep the Command Prompt settings you customized...

Fix 'Microsoft Teams Command Not Found' on Mac

If you see zsh: command not found: teams when trying to launch Microsoft Teams from ...

How to Run Windows Activation as Administrator

When Windows activation fails with errors like "0xC004F074" or "The activation server reported th...

Fix OneDrive Cache Clear Not Working

You try to clear the OneDrive cache to fix a sync problem, but the old files or sync status remai...

GitHub Actions YAML Syntax Error: How to Fix

You push a workflow file and see a red X—YAML syntax error. The action doesn't run. Here's how to...