There are several alternatives, such as using Theano (http://deeplearning.net/tutorial/), Caffe (http://caffe.berkeleyvision.org/), cuda-convnet2 (https://code.google.com/p/cuda-convnet2/) etc. I am working in Win 7 environment.
I would like to know what is the best starting point for baisc as well as advanced study of deep machine learning.