Samsung Galaxy S5

I am trying to take Logical Extraction by using UFED but it says "Need more free space to run the 'Ufed Touch' on the resource phone, Agent software couldn't installed.

I connected phone to the pc and i saw there is a 460MB free space on the phone memory and 1,5gb free space on the SD card memory.

I also tryed file system extraction and i managed to get a( full shared) extraction.
I am wondering how much free space do UFED need to get installed and work on android mobiles?

Anyone have any experience or knowledge ?