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

Fix PowerShell Execution Policy Restricted by Group Policy

When you try to run a PowerShell script and see an error like 'execution policy restricted' or 'c...

Fix OBS Black Screen After Game Capture Setup

You set up a game capture source in OBS Studio, but the preview shows a black screen. The game ru...

How to Fix Windows 10 Activation Error Without a Key

You see a "Windows isn't activated" watermark, but you don't have a product key. Maybe you upgrad...

Fix Windows Defender Proxy Error Not Working

You launch Windows Defender Security Center or try to run a scan, and you see a proxy error—somet...

Fix KMS Activation Error: Port 1688 Already in Use

Windows Security Cache Troubleshooting Checklist

Windows security cache stores credentials, tokens, and security policies to speed up authenticati...