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

Fix Windows Activation Version Mismatch Due to Incorrect Edition

You install or upgrade Windows, then see an activation error like “The version of Windows you hav...

How to Fix Task Scheduler High CPU Usage from Background Tasks

You open Task Manager and see Task Scheduler consuming 20–50% CPU, even when your PC is idle. Bac...

Fix Microsoft Store Not Connecting to Internet

You open Microsoft Store and see a message like 'Check your internet connection' or 'Try that aga...

Chrome Token Expired on Windows 10: How to Fix

You're browsing in Chrome on Windows 10 and suddenly see a message like 'Your token has expired' ...

Fix Microsoft Teams File Locked Not Opening

When you try to open a file in Microsoft Teams and get a “file locked” or “this file is locked fo...

How to Fix '404 Not Found' Error in Windows Command Prompt