How to install niftynet successfully

I have been struggling to install niftynet on my old windows 7, and always got error messages back. Here is the procedure that works:

Ok to install the latest dev version,
now this should work (with cpu-only) :

conda create -n nntest python=3.5 
source activate nntest
pip install tensorflow==1.7
pip install -r https://raw.githubusercontent.com/NifTK/NiftyNet/dev/requirements-cpu.txt
pip install git+https://github.com/NifTK/NiftyNet.git

with gpu:

conda create -n…