I have an old office pc Lenovo M91p tower, I tried to make it a light gaming pc by adding grapchic card (750 ti / 1050 ti). I installed Windows using Uefi and installed Nvidia drivers, everything goes nice and gpu's work perfectly on different benchmarks. However when restarting pc I always get the Windows fixing itself screen and I can't get any further unless I go to bios and set boot options again. Bios hasn't forgot the boot order or anything but after this it goes to Windows sometimes and gpu works and sometimes it still gives the fixing Windows screen. What might be the problem? This far I have updated bios, tried different ssd drive and sata cable. And it does this with both gpu's (750 ti and 1050 ti). I have also tried different settings on bios (quick boot off etc). Without gpu it goes to Windows every time, so it is somehow gpu related.