No I mean I followed the install perfectly and I got Mojave installed. It worked and then I formatted the disk and reinstalled windows. But now my Nvidia card is not working. I’m wondering if it was not one of those Kext that somehow permanently disabled my Nvidia card?
I don't think so.
You are assuming that some of the kext has messed with your nvidia. That is false. Because, (As much as I understand), whenever we run macos from Clover, it runs as an another layer (much like Virtualization).
So, OUTSIDE clover, everything is NORMAL.
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Now coming to your problem, (Sorry maintainers, as this may be off-topic. Apologies) This is purely a Driver problem. So, Go to Settings>Apps & Features, and Uninstall all the nVidia related drivers from it. RESTART the system.
Remember, do not download graphics driver (intel or nvidia) from Lenovo... They work, but are sometimes corrupted and are old versions(Experience this many many times).
So, download nvidia driver from
THIS LINK. Install it.
If it still doesn't work, I would suggest you to Clean Install Windows Again. Then, install the drivers (Remember, DO NOT start internet connection until drivers installed. Otherwise, Windows Update may itself install drivers automatically).
After installing, you can turn on the internet.