According to Infoworld, “Microsoft has signed an agreement with Lenovo to ensure that its PCs ship with licensed versions of Windows software on its computers”
see Microsoft, Lenovo to promote genuine Windows on PCs
I have not been able to find this story anywhere else on the web. Not from M$. Not from Lenovo. Every hit on Google is a direct copy of the story in Infoworld…
As Lenovo clearly ships a lot of GNU/Linux and Chrome OS PCs even in China and as far as I know Lenovo has never shipped unlicensed software, I think this is InfoWorld making its own news or playing an early April Fools joke. It’s probably the latter… Whether it’s just a renewal of the old agreement from 2006 to “recommend” that other OS, I don’t know, but it’s a very bad joke.