Inspiron 7537 won't detect Nvidia 750M at all after Windows 10 installation

Hi guys,

I've had this Inspiron 7537 for over a year with no trouble with the Nvidia 750M at all, even after a format and clean install of Windows 8.

Recently I upgraded to Windows 10 and the graphics card was still working fine and I could play games with ease.

Today, I formatted and installed a clean Windows 10 but now the graphic card isn't detected by Windows at all. It won't show up on device manager and the Nvidia driver installer won't detect it either saying "it could not find compatible graphics hardware".

I also formatted my laptop and reinstalled Windows 8.1 and that didn't help either. Also tried to downgrading my bios as I upgraded it around the time I did my clean Windows 10 install and that made no difference either.Please help!