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

Check Which Application Is Using Remote Desktop Port (3389)

When you try to start Remote Desktop and get an error that the port is already in use, something ...

Mac Terminal Command Prompt Troubleshooting Checklist

When your Mac Terminal command prompt stops responding, shows strange characters, or fails to run...

Fix Windows Activation Sync Issues Between Devices

You might see an activation error on a second PC even though your Microsoft account shows a valid...

Fix OneDrive Sync Error 0x8004de40 (SSL Certificate)

If you see error 0x8004de40 when syncing OneDrive, it usually means your computer cannot verify t...

Fix PowerShell Access Denied Errors on Windows 10

If you're seeing 'Access Denied' or 'Permission Denied' when running PowerShell commands on Windo...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

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