paste the whl files folder named python to the path C:\temp(in req.txt named the main modules you want to install), and go to the python.exe directory which you want to install on:
python -m pip install -r "C:\temp\python\req.txt" --no-index --find-links file://"C:\temp\python"
or to the path and:
for %x in (*.whl) do python -m pip install %x
by the way, using proxy(2 dashes before proxy):
pip install modulename --proxy http://user:password@proxyserver:port
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