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

How to Reset Microsoft Store SSL Certificate

If you see errors like 'Certificate not valid' or 'SSL connection error' when opening Microsoft S...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

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

How to Fix Slow Windows Defender Scan Speed

If your Windows Defender (Microsoft Defender Antivirus) scan is taking much longer than usual—som...

Fix PuTTY Connection Refused: Check SSH Service

When you see 'Connection refused' in PuTTY, it usually means the SSH server on the remote machine...

Fix Windows Update Error 0x8024402c via Network Configuration

If you see Windows Update error 0x8024402c, it usually means your PC can't reach the update serve...

Fix Windows Terminal Access Denied When Opening Profile

You click a profile in Windows Terminal and get an 'access denied' error. This usually happens wh...