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

How to Fix Windows Security 404 Not Found Error

If you see a '404 Not Found' error when opening Windows Security (formerly Windows Defender), the...

Fix Outlook File Locked by Antivirus Software

If you see errors like "Cannot access file" or "File in use" when opening Outlook, your antivirus...

How to Clear Microsoft Teams Cache on Mac Step by Step

If Microsoft Teams on your Mac is running slowly, failing to load, or showing sign-in errors, a c...

Windows Defender High CPU Usage After Malwarebytes Installation

After installing Malwarebytes, some users notice Windows Defender Antivirus Service consuming hig...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

If you're dual-booting Windows and Ubuntu, or replacing Windows...

Fix Remote Desktop Port Already Allocated on Windows 10

When you try to start Remote Desktop on Windows 10 and see the error 'The specified port is alrea...