When I get new Lenovo laptop, I immediately throw away their drive, put a bigger one and install Windows 7 from scratch.
At least for some time, this was not good enough. The shipped crap/spyware in the firmware and exploited Windows Platform Binary Table to inject their spyware into freshly installed Windows. So, even a clean disk and an official Windows CD didn't evade the spyware:
https://www.theregister.co.uk/2015/08/12/lenovo_firmware_nas...
Luckily, desktop Linux/BSD is probably too obscure to be on their radar.