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

Fix Windows Terminal High CPU Usage: Practical Steps

You open Task Manager and see Windows Terminal using 20–40% CPU even when idle. This usually poin...

Fix MongoDB Authentication Failed: Database Mismatch

When you see Authentication failed in MongoDB along with a message about database mi...

Command Prompt High CPU Usage: Sysadmin Checklist

When Command Prompt (cmd.exe) consumes excessive CPU, it often indicates a runaway batch script, ...

Windows Security Not Opening? Fix It Here

If Windows Security won't open—clicking the icon or searching for it does nothing—you're not alon...

Checklist for Fixing Windows Update File Locked Errors

When a Windows Update fails with a message like "file locked" or "file in use," it usually means ...

OneDrive Invalid Configuration Sync Issue Fix

Understanding the Problem

You open OneDrive and see an error like "Invalid configuration"...