This motherboard officially supports Windows XP and Vista . It can run Windows 7, 8, and even 10, but you will need to manually hunt for drivers.
If you are tired of hunting for for Windows, install Linux. The Linux kernel (5.x and newer) includes all open-source drivers built-in: lenovo g31t-lm motherboard drivers
The Lenovo G31T-LM Go to product viewer dialog for this item. This motherboard officially supports Windows XP and Vista