It's not that straightforward; there are a ton of drivers that Lenovos come with; fingerprint scanners, synaptics touchpad, Sound cards and so on. These are usually bundled in a Lenovo System Update - when it gets installed, it installs a ton of cruft. It's a pity really - I have the latest X1 Carbon; it's a marvellous gadget. Pity the software is so poor.

There honestly isn't a perfect option out there, but for example I've sworn off Lenovo at this point entirely. The unfortunate thing is Google recently sold Motorola to them.