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

Fix Windows Activation Version Mismatch via Command Prompt

If you see an error like "The version of Windows you are trying to activate does not match the pr...

Fix 'PowerShell Execution Policy Change Permission Denied' Error

When you try to change the PowerShell execution policy and get a 'permission denied' error, it us...

OBS Black Screen Troubleshooting Checklist

You launch OBS Studio, start a scene, and the preview shows a black screen. This is one of the mo...

How to Fix Chrome High CPU Usage on Windows 10

You're working or browsing, and suddenly your Windows 10 fan kicks in, the system feels sluggish,...

How to Fix Windows Defender Service Unavailable in Windows 10

If you see 'Windows Defender service unavailable' in Windows 10, the antivirus may be disabled or...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

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