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

Fix Windows Update ‘Authentication Failed’ or ‘Password Incorrect’ Error

You try to check for Windows updates and see an error like “Authentication failed” or “Password i...

Chrome Browser Proxy Error Fix Checklist

If Chrome shows "ERR_PROXY_CONNECTION_FAILED" or similar proxy errors, you usually can't browse t...

Windows Defender Token Expired: How to Fix It

If you see a message that your Windows Defender token has expired, it usually means the security ...

Fix Windows Terminal Blank Screen After Sleep

If you wake your Windows PC from sleep and find Windows Terminal showing only a black or blank sc...

How to Fix Git Fatal Repository Not Found Error

Fix Microsoft Store DNS Error with Command Prompt

If you see errors like "Check your connection" or "Try that again – Something went wrong" in Micr...