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

PowerShell Command Not Found but Works in CMD

Windows Defender Setup Checklist for New PC

When you set up a new PC, Windows Defender (now called Microsoft Defender Antivirus) is already a...

Remote Desktop Security Configuration Checklist

If you've set up Remote Desktop (RDP) and are worried about security—or if you've already seen su...

Fix Command Prompt Backup Fails with Access Denied

When you run a backup command in Command Prompt and get an 'Access Denied' error, it usually mean...

Fix Remote Desktop File Locked Error 0x80070020

If you get error 0x80070020 when opening or editing a file over Remote Desktop, it usually means ...

How to Fix Windows Security 404 Error When Opening

When you open Windows Security and see a 404 error page, it usually means the app can't find its ...