Get your taxes done using TurboTax

It is probably not possible since no option is given as to where to install it. 

Nothing I could find on the internet suggests installing on D: (without an os) is possible.

if it can't be done that leaves you with some options

1) certain folders can be compressed to save space. How this would affect your computer is unknown

2) decrease the size of the paging file. Again the effect on your computer is unknown

3) buy a larger hard drive then clone the present c drive

4) create a dual boot system. This will require installing W11 on D. Other steps taken will allow the installation of Turbotax on D. Other steps are needed when booting so you can select which drive to use. However, programs on the original C probably will not function. Note that installing the OS fresh on D will probably result in the loss of all files present on D.