Checklists for software errors, setup, and tool workflows.

Fix PowerShell Token Expired Not Refreshing Automatically

If you're using PowerShell with Azure, Microsoft Graph, or Exchange Online modules, you may encou...

Setup Environment Variables to Fix Command Not Found

You type a command you know is installed, but the shell replies: command not found. ...

Fix Microsoft Teams Version Mismatch Update Required Error

Understanding the Error

When you see 'version mismatch update required' in Microsoft Team...

Fix Windows Security 504 Gateway Timeout After Reset Settings

If you've reset Windows Security settings and now see a 504 gateway timeout error when opening th...

Fix Microsoft Teams Connection Refused on Windows 10

You open Microsoft Teams on Windows 10, but instead of connecting, you see a 'connection refused'...

Fix Windows Security Error 404 After Update

After a recent Windows update, you might see an error 404 when opening Windows Security. The app ...