Hi,
I’m trying to install Unreal Engine through the msi file that you provided me, but it keeps giving me an error (error code 2738). I’ve already tried to download it again.
I’m using Windows 7, and I’m on date with DirectX 11.
Regards.
Hi Rafus! Have you seen this thread yet? :-
Some of that info may help you, or if not, there is some info there that will show you how to produce installer log files to upload here and someone will be along to help 
We have not heard back from you in a few weeks, so we are marking this post as Resolved for tracking purposes. If you are still experiencing the issue you reported, please respond to this message with additional information and we will offer further assistance.
Thank you.