What I would do.... Download all the necessary drivers for your laptop from Lenovo first (save on another medium like a usb drive). Do a clean install of the latest version of Windows 10. Do not connect your pc to the internet yet. Install the chipset drivers first then do the video, audio and lan/wireless/bluetooth. Be sure to do the chipset and video drivers first. If the driver install insists on an internet connection then do that if you have too. The newer versions of Windows 10 gives you the option to choose drivers if you want them or not, if the Lenovo drivers work, then do not update any drivers from M$