I've ran across an issue with Dell Image Assist that after deploying the image to workstations it hangs at "Getting Ready" for a very long period of time between 30min-2hrs on the first boot. 

The fix for me was to set the Windows service dmwappushservice to auto before capturing the image.

Before capture you can do either

• CMD: sc config dmwappushservice start=delayed-auto
• Powershell: set-service dmwappushservice -StartupType Automatic

If your stuck at the "Getting Ready" screen and want to verify this is the issue you can

1. SHIFT+F10 to open CMD
2. Enter: sc config dmwappushservice start=delayed-auto into the command prompt

If it boots that was the issue.

Apparently other causes of this issue are related to Domain Join, either Bad Credentials and/or no network connection. 

Certainly ping me if you have any questions.

-Andy

 

Found this info here: https://community.spiceworks.com/topic/2178468-deploying-windows-to-elitedesk-machines-via-mdt

 

@DELL-Tyler M