Install w7 on unsupported motherboard

Sep 4, 2018
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So i buyed today a new pc with the asus prime h310m-a motherboard and just realized it doesnt support w7. I have a clean install for w7 with activation and i thought i would just upgrade it to w10 after install for w7 is complete. So i buyed the pc without a windows. How can i fix it? When it starting the install for w7 pc is stop working no mouse and no keyboard.
(I can enter the bios before the install start). Thanks