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

Windows Terminal Not Opening After Update: How to Fix

After a Windows update, you might click the Terminal icon and nothing happens—no window, no error...

Outlook Token Expired Renewal Steps

If Outlook suddenly asks for your password repeatedly, shows 'Need Password' in the status bar, o...

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

Fix Windows Defender Service Not Starting (Error 404)

If you see error 404 when trying to start Windows Defender, it usually means the service executab...

Fix Chrome Port Already Allocated Error (ERR_UNSAFE_PORT)

When Chrome displays an error like ERR_UNSAFE_PORT or a message that a port is alrea...

Microsoft Store Dependency Conflict Checklist

If you see errors like 'This app can't open' or 'Try that again – something happened on our end' ...