Question re Studio Instruments Install

I was very excited to see the release this morning and queued the install in the background while I was doing my pre-work ironing.  However, this was before I had seen that existing Platinum users did not have to install the Studio Instruments installer.  Question is:  My old Studio Instruments install is on a D (not main) drive, and it appears all the new installs default to C.  Given that, can I uninstall the redundant Studio Instruments install on C without issue, or will it cause registry havoc with the previous install on D?
 
Thanks for any insight you can provide.