Why is my 2007 Toshiba A135 with an Intel 945GM Chipset fully supports Windows 10 while my 2012 Lenovo G570 with an Intel B950 processor can't even run Windows 10 smoothly because of an unsupported Display Driver, though both of them are listed as Unsupported Products based on the support page? [Graphics Drivers — Supported Operating Systems]
It is just confusing and terrible. I use my Lenovo as my main machine and I really want it to have Windows 10, and not my Toshiba. Can someone explain what is happening here? Thank you very much.