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

Fix Outlook High CPU Usage Caused by Antivirus Scanning

Symptoms and Likely Cause

You notice Outlook consuming 50% or more CPU, making your syste...

MongoDB Compass Connection Refused Due to Firewall: Fixes

You open MongoDB Compass, enter your connection string, and get connect ECONNREFUSED...

Windows Activation: Cache Clear vs Reset – What’s the Difference?

If Windows suddenly shows an activation error after a hardware change or update, you might need t...

Fix Command Prompt Can't Connect to SQL Server

If you're seeing errors like 'Cannot open server 'hostname' requested by the login' or <...

Repair Windows Security Module Registry: Step-by-Step Guide

If Windows Security (formerly Windows Defender) won't open, shows errors like "This app has been ...

Outlook High CPU Usage: Troubleshooting Checklist

If Outlook is using 30% or more CPU for extended periods, your system slows down and battery drai...