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

How to Reinstall a Chrome Extension Without Losing Data

When a Chrome extension stops working, you might need to reinstall it. But you don't want to lose...

How to Fix Microsoft Teams 404 Error: Step-by-Step Guide

If you're seeing a 404 error in Microsoft Teams—often when trying to open a file, channel, or tab...

Fix CMD Service Unavailable Due to Group Policy

Situation

You open Command Prompt and see an error like "Command Prompt has been disabled...

How to Remove a Host Key from SSH Known Hosts

SSH warns or fails when a remote host's key changes—common after server rebuilds, IP reassignment...

Fix VSCode Remote SSH Permission Denied on Windows

When using VSCode's Remote-SSH extension on Windows, you may see 'Permission denied (publickey)' ...

How to Clear DNS Cache in Windows 10 via Command Prompt

If you're seeing outdated website content, getting DNS errors, or websites won't load after chang...