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

Fix Windows Security High Memory Usage

If you notice Windows Security (formerly Windows Defender) using excessive memory—sometimes hundr...

How to Fix Windows Security Invalid Configuration Errors

You open Windows Security and see a yellow warning: "Invalid configuration" or "Page not availabl...

WinRAR Checksum Error Recovery Checklist

If you see a "Checksum error" in WinRAR, it usually means the archive is damaged or incomplete. T...

Fix OneDrive Sync Failures Due to SSL Certificate Issues

OneDrive may stop syncing if it cannot verify the SSL certificate of the server it connects to. T...

Fix 'Service Not Found' Error for Task Scheduler on Ubuntu

MongoDB Authentication Failed: Setup Guide and Fixes

If you're seeing 'Authentication failed' when trying to connect to MongoDB, you're not alone. Thi...