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

Fix PostgreSQL Password Auth Failure After Upgrade

After a PostgreSQL upgrade, you might see errors like "password authentication failed for user" o...

Check if a Port Is Already Allocated Using Command Prompt

When you start a service or application and get an error like "Address already in use" or "Port i...

Fix BitLocker High Memory Usage on Windows 11

If you notice that BitLocker is using a lot of memory on Windows 11—sometimes over 1 GB—it can sl...

Fix Windows Defender Real-Time Protection Off via Registry

If you see "Real-time protection is off" in Windows Security and the toggle is grayed out or keep...

How to Transfer Windows 10 Digital License to a New PC

If you upgraded to Windows 10 for free or bought a retail license, you can move that license to a...

Windows Update High CPU Usage Troubleshooting Checklist