Using the CC packager to install into a D drive

My school purchased an educational license subscription for a class I am teaching. This apparently can only be distributed and installed through Adobe's packaging software. Some of our computers have a limited C drive, and a much bigger D drive - where we want to install the program. After creating and distributing the license package to one of these machines, I click on the installer file, and watch as it slowly fills up the C drive to it's maximum capacity, then aborts installation due to insufficient space.

The installer offers no options when it opens, it is just a progress bar. There is no way to choose where to install these dozens of gigabytes worth of apps. The installation file is saved in the D drive, but insists on trying to install into C:. With the thousands of dollars we spent on the licences, please don't just tell me that it must install to the C drive. It's not an option on our machines. Thanks.

[Here is the list of all Adobe forums... https://forums.adobe.com/welcome]

[Moved from regular Cloud install to the forum for deployment... Mod]