When I export my project and it is above 60% it pauses and freezes my pc

Hey,

When i try to export this project with h.264, CUDA on, hardware encoding, VBR 1 pass, 15Mbps.

and when its above 60% crash and freezes my pc.

MY PC:

AMD RYZEN 7 1700 8-Core 3.7 GHz Turbo AM4 65W
MSI GeForce GTX 1660 SUPER 6GB GDDR6 GAMING X
Team DDR4 8GB 3000Mhz T-Force
wd 2tb / 500gb
wd 250 gb 500mb