I fiddled around with rights, closing antivirus, developer mode etc. Somehow I got one installation to be able to create files (don't know how, I can't reproduce it), but now I've reverted back to another problem. When trying limep.y init again, I get:
UnicodeDecodeError: 'utf8' codec can't decode byte 0xe4 in position 1588: invalid continuation byte
And demos still don't work. I get: goog.recuire could not find: lime.Director