Upgrade of WinCC

Hi, I'm new to forum so I hope my post is fine.

I'm in a plant, commissioing still in progress, the scada is wincc 7.3.

For a mistake the supplier sent one HMI with WinCC installed as following:

- current license for SIMATIC HMI is 7.3 

- current SW version is 7.2

-Version I wish to install 7.3 + Upd 1

The question is:

Can i simply install the version 7.3 from the official cd ?

Do I need to do any special care about license ? 

Best regards.

------------------------------------------------------------------------------------------
Split from Upgrade WinCC License.

Closed cause question posted twice.

The second thread with the subject Wincc version upgrade is published within the conference SIMATIC WinCC.

Best regards
Jen_Moderator