Having trouble w/ dualboot on 1 SSD

Hello all Hackintosher. I'm having some trouble with my Hackintosh. The trouble is if I want to use macOS, I must booting into Windows first, then restart the Hack, and boot into macOS. If I boot macOS without booting Windows first, after the verbose screen, the Hack will restart. Anyone have this problem like me? And I hope that someone will know how to fix it. Many thanks!

Also, I lost my Windows Boot Manager. When I choose to boot the "Windows Boot Manager", it's return to boot picker

(Sorry for my bad English,btw)

My setup: Mobo: Gigabyte H110M-DS2 DDR4 CPU: Intel Core i3-7100 GPU: AMD Radeon R7 240 (spoofed to R7 250X) SSD: Samsung 850 EVO SATA 3 120GiB

submitted by /u/pan4life
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