I can't find cuda75 for conda install

the command
conda install pytorch=0.4.1 cuda75 -c pytorch
is provided on our website, but it failed to find cuda7.5, low capacity card should be supported, this thing is meaningful, for a freshman as me, I start my learning by using old laptop, anyone can tell me where to get a copy of cuda75?

I can’t find a CUDA7.5 build, but see CUDA8.0 binaries here.

thanks a lot, I see it on the website, and cuda75 for linux, but no cuda75 for windows is available