I've bought a Lenovo notebook, wanted to download a copy of Windows from them (it's OEM), and searched on their forums for clues, since I didn't find anything on the site. This is what a moderator wrote
> If what you wish to achieve is an OEM imaged system, the only way is to obtain official recovery media through official channels. There are no legal downloads available, therefore discussion of it is not allowed. You may contact Service (info and hours below) to discuss your options.
https://forums.lenovo.com/t5/Lenovo-B-and-G-Series-Notebooks...
You must buy DVDs from them. You can't even _talk_ about alternatives.