Can't install High Sierra Security Update 2020-005

Hi, I'm new to hackintoshing. I was just wondering if anyone had the same issue as I did or at least help me understand this problem. I have an Asus N552VX laptop and I connected an external hard drive where I installed High Sierra. I followed the opencore 0.6.3 guide to do this. I was able to install it and boot. I wanted to install nvidia webdriver for GTX950M because right now I only have Intel HD 530 written for graphics when I look at About Mac. I looked this up online and some people suggested to do 2020-005 security update from the app store. This is where my problem lies because when I try to install it, it will reboot but About Mac still says 17G66 instead of 17G14033.

CPU: Intel Core i7-6700HQ
GPU: Intel HD 530, nVIDIA GTX 950M
Motherboard: Asus VivoBook Pro N552VX
Ethernet: RealTek RTL8168/8111
Audio: RealTek ALC255

submitted by /u/desuu_
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