Checklists for software errors, setup, and tool workflows.

How to Fix Microsoft Store 'Module Not Found' Error

If you see a 'module not found' error when opening Microsoft Store or launching an app, it usuall...

Microsoft Teams Not Opening on Windows 10: Fixes

You click the Teams icon, but nothing happens—or it stalls at the loading screen. This is a commo...

Fix 504 Gateway Timeout with Windows Security Firewall

If you're seeing a 504 Gateway Timeout error on a Windows machine, the Windows Security firewall ...

Fix Error 0x80070422 Windows Security Version Mismatch

You may see error code 0x80070422 when opening Windows Security, often accompanied by a message a...

Fix Microsoft Store SSL Certificate Error After Update

After a Windows update, you might see an SSL certificate error when opening Microsoft Store. The ...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

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