The tech guy went with the REGEDIT. I did the REGEDIT and installed the game. Here's the info if anyone needs it.
"To resolve this issue, use the following methods in the order that they appear in. Please do not skip steps below. These steps are rather lengthy. You may want to print them out before you start. To try resolving the issue please try the below mentioned steps. WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Click on Start -->Run --->Type Regedit and in the new window Click on
in the right side of this menu you will find "ProgramFilesDir" in the Name Column, right click on it and click modify it and instead of C: choose the desired Drive.
Once you have finished the the installation please follow the steps to put the registry entry back to the original state."