Sorry that I don't have enough reputation to post images.
The main problem is that it tells me that I need to install a C compiler and reinstall gensim or the train will be slow, and in fact it is really slow.
I have installed mingw32, Visual Studio 2008, and have added the mingw32 environment variable to my path.
Any ideas on how to solve it?
I had the same problem and tried many solutions, but none of them worked except degrading to gensim version 3.7.1.
Gensim needs a C compiler?