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

Fix Windows Defender 404 Not Found After Update

After installing a recent Windows update, some users find that Windows Defender is missing or sho...

Fix Windows Search Not Working Due to Dependency Conflict

If Windows Search stops returning results or the search box shows no results, a dependency confli...

How to Clear Edge Update Cache to Fix Update Failed Errors

When Microsoft Edge fails to update, you may see an error like "Update failed" or "Something went...

Command Prompt Command Not Found Troubleshooting Checklist

When you type a command in Command Prompt and get 'not recognized as an internal or external comm...

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

Fix Nginx Configuration Syntax Error on Line 22

When running nginx -t and seeing 'syntax error' on line 22, the config file won't lo...