Problem with instalation

I have downloaded a file 'pim_installmgr_mathcad.exe' and try to run it. It opens up, the PTC Installation Assistant runs up to 100%, Windows pops up to ask me to allow this program to make changes, I say yes - and then nothing. Nothing more happens. It just stops.

I have Windows 10 Home 64-bit as my OS.

I have tried running it as Administrator - same non-resuslt.

Please help