Microsoft AX 2012 R3 Azure Demo machine 'Windows License is expired'

I had an issue today where I spun up a new AX 2012 R3 'Retail Essentials' machine on Azure. It was only online for about an hour or so until the machine shut down suddenly. I thought someone shut down my VM thinking I left it on.

I went into Azure and sure enough it was shut down. I restarted it and got back in.

Upon logging back in, a colleague noted in the lower right hand corner the message of 'Windows License is expired' (Figure 1 below).

Figure 1 - The windows license expired message

The machine was built off of a script where the server needed to be 'rearmed' so the license is no longer expired. There are two ways to do this:

1. Click the 'Rearm Server' script in the start menu all the way to the right (Figure 2)
2. Open the command prompt as an admin and type in 'slmgr -rearm'.

The server will restart and when you log back in, the license will no longer be expired. 

Easy to fix for the demo machines that are available out of the box. 

Special thanks to Devin @devkitt

Figure 2 - The 'rearm server' script