Remember I take it this has never worked.
1. The BIOS shall be current and in default values.
2. The chipset driver package must be installed.
PS. I see a lot of prior answers to this on Google so I did not pick over those but lead with my usual first things I do when I have GPU driver troubles.
i after installing nvidia drivers i get a code 43 in device manager
i have used DDU to uninstall all nvidia drivers i do a custom install choosing "clean install' after rebooting i still get error code 43 i tried latest diver versions all the way down to 2015 versions still get this code
windows 10 64bit
geforce gt630 older card i know
gigabyte MD GA-78LMT-SP
AMD Phenom 2 6 core
8 gig ram

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