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

Remote Desktop Not Working After Windows Update: Fixes

You update Windows, reboot, and suddenly Remote Desktop won't connect. This is a common frustrati...

Fix Windows Defender Update Error 0x80070643

If you see error 0x80070643 when updating Windows Defender, it usually means the update failed du...

Fix pgAdmin Cannot Connect to PostgreSQL on Localhost

You launch pgAdmin, try to connect to your local PostgreSQL server, and get an error like "could ...

How to Fix Remote Desktop Error Code 0x4

When you try to connect to a remote computer via Remote Desktop (RDP) and see error code 0x4, the...

Fix Windows Defender Not Starting Due to Dependency Conflict

If Windows Defender won't start and you see an error about a dependency service or group failed t...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

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