Acrobat DC Install Fail, Destination Folder Not Empty

I had Acrobat DC on the C: Drive, and removed it. 
Downloaded the Distribution version for Install.
Tried to Install to the equivalent location on 😧 (I have other apps in Program Files (x86) on D:)

At the Install Verification stage it fails stating that the desitination folder is not empty and 'Please select an empty folder'.
I have been through every possible location I can think of to remove Adobe folders:
C:/Program Files

C:/Program Files (x86)

C:/Program Files (x86)/Common Files

C:/ProgramData
C:/Users/username/AppData/Local
C:/Users/username/AppData/Roaming
As well as anything on the 😧 drive.
I have tried running the Adobe Acro Cleaner, but it won't run because it says there isn't an instance of it to clean up.
I think the error must really mean something different.
I can't think of anything else to try. Ideas anyone?