Upon installing an NVidia GPU in your Windows 10 or 11 machine, you may sometimes encounter “Error code 43” under Device Manager. The problem is annoying and may not be trivial to fix.

The fix is easy, thanks to people who built an “nvidia-error43-fixer” tool. It originates from here:
https://egpu.io/forums/expresscard-mpcie-m-2-adapters/script-nvidia-error43-fixer/