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

BitLocker Recovery Key Prompt After Windows Update: Fix Guide

You update Windows, restart your PC, and instead of your normal login, you see a blue screen aski...

Fix Windows Activation Error 0xc004c003: Invalid Product Key

When you try to activate Windows and see error 0xc004c003 with the message "invalid product key,"...

How to Fix Chrome Profile Token Expired Error

You open Chrome and see a message that your profile token has expired. This usually means Chrome ...

Fix Microsoft Teams 502 Bad Gateway Error When Joining a Meeting

When you try to join a Microsoft Teams meeting and see a 502 Bad Gateway error, ...

Fix 502 Bad Gateway in Windows Terminal Proxy Config

If you see a 502 Bad Gateway error in Windows Terminal, it usually means your proxy ...

Windows Update High CPU Usage Troubleshooting Checklist