Checklists for software errors, setup, and tool workflows.

Fix Visual Studio Installer Stuck at Downloading Components

You start a new Visual Studio installation or update, and the progress bar stops at “Downloading ...

Fix Windows Activation Error After Hardware Change

You've just swapped out your motherboard, CPU, or other major hardware, and now Windows shows an ...

Fix Microsoft Teams Authentication Failed Due to Proxy

If you see 'Authentication failed' when launching Microsoft Teams and you're behind a corporate p...

How to Fix Windows Activation Stuck on Sign-In Screen

If you're stuck at the Windows sign-in screen with an activation prompt that won't go away, you'r...

Fix CMD Service Unavailable Due to Group Policy

Situation

You open Command Prompt and see an error like "Command Prompt has been disabled...

Fix 'Port Already Allocated' Error in Windows Defender on Windows 10

You may see an error like "Windows Defender Firewall cannot use port X because it is already allo...