Checklists for software errors, setup, and tool workflows.

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Outlook for Mac Stuck on Loading Profile: Fixes to Try

You open Outlook for Mac, and it sits on the loading profile screen for minutes—or indefinitely. ...

SSH Permission Denied (Publickey) on EC2: Setup Fixes

If you're seeing "Permission denied (publickey)" when trying to SSH into an AWS EC2 instance, the...

Fix Command Prompt Crashing After Windows Update

After a recent Windows update, you might find that Command Prompt opens briefly and then closes i...

Fix Windows Defender Security Center Blank White Screen

You open Windows Security (formerly Windows Defender Security Center) and see only a blank white ...

Fix Git Token Expired Error in CMD: Step-by-Step

When you run a Git command in CMD and see fatal: Authentication failed for 'https://...'

How to Change Default Profile in Windows Terminal
If you open Windows Terminal and it always starts with PowerShell when you'd rather use Command P...