It was found that Lenovo Laptops were shipped with a preinstalled malware which is capable of remotely installing software and sending data back to the company.
Since the malware is integrated into the devices firmware even a fresh install of the operating system can not help to avoid it as in the case of the Windows operating system the malware is able to directly change files within the OS even for a new installation.
source: https://thehackernews.com/2015/08/lenovo-rootkit-malware.html
archived source: https://wellthissucks.xyz/2015/08/12/lenovo-ships-laptops-with-preinstalled-malware-archived-source/