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

Fix Microsoft Teams Blank Screen After Windows 10 Update

After a Windows 10 update, you open Microsoft Teams and see nothing but a blank white or gray scr...

How to Fix Windows Search Authentication Failed by Setting Correct Credentials

If you see an "authentication failed" error in Windows Search, it usually means the service can't...

How to Fix PostgreSQL Connection Refused on Localhost

You try to connect to PostgreSQL on localhost and get connection refused. This usual...

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED When Using VPN

Fixing Windows Terminal 404 Errors: A Practical Guide

You open Windows Terminal and see a 404 error when trying to launch a profile. This usually means...

Fix Windows Activation Invalid Configuration After Hardware Change

After replacing a motherboard, CPU, or hard drive, you might see "Windows isn't activated" or "In...