I have been a big fan/proponent/promoter/user of Lenovo laptops for years. They're rugged and reliable and does what I need them for - I'm writing this on a T510 running Ubuntu 15.04
But, Lenovo always seems to be on the wrong side of software issues. Whether it's malware, tracking or now Win10, I don't feel like their products can be trusted.
To be fair, if I were to consider anybody else's Windows PCs now, I would probably reject them for the same reasons as Lenovo. Running Linux on the laptops in a dual boot mode is a requirement for me.
So, what looks like the best solution for me is to eschew Windows laptops and go to Macs. I have a four year old Macbook Air that I've upgraded the hard drive on, dual booting and I can avoid the Microsoft bullshit for a bit of a premium over a Lenovo laptop, but as I tend to buy higher quality laptops, that premium isn't that high.
Tower systems will continue to be custom builds with Windows 7 or Linux.
Sorry Microsoft, Win10 just ain't in my future.