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...

Fix 'Command Prompt Not Found' Error After Windows Update

After a Windows update, you might see a '404 not found' error when trying to open Command Prompt,...

Fix Ubuntu apt update GPG missing key error

When running sudo apt update, you might see an error like:

How to Fix Windows Security Not Opening After Update

After a Windows update, you might click the Windows Security icon and nothing happens, or the app...

Clear System Cache Using CMD with Admin Rights

When your Windows PC starts acting sluggish, apps take forever to load, or you run into strange e...

Fix Windows Security High Memory Usage

You open Task Manager and see Windows Security (or Antimalware Service Executable) using 500 MB o...