I hope this is the right place to post this, but if not the Mod's can move it. Lenovo says Linux-based operating systems will have to be updated to run on its laptops http://www.bbc.com/news/technology-37431299
Many jumped to the "obvious" conclusion that Microsoft is trying to block Linux installs but maybe it's simpler and not shady: http://fossforce.com/2016/09/surprise-microsoftt-blocking-linux-lenovo-laptops/