I have a Macbook Pro late 2011 and my discrete GPU stopped working about a month ago, so now I have to use the Intel HD Graphics 3000 card only.
Anyway, I've deleted some kexts related to my old AMD Radeon 6750M, which doesn't work anymore and I use gfxCardStatus to block my mac from switching GPUs, and sometimes I just leave it with dynamic switching. It never switched GPUs after deleting these kexts (but the GPU is still recognizable through About This Mac)...
What I want to know is: Can I update my Mac OS X operating system without creating these kexts again or using the dedicated GPU?
I don't know if updating it will generate new kexts so my Mac will try to use the dedicated video card during the update process and mess with everything, but I need to update since I'm currently using Mac OS X 10.10 Yosemite DP8 which is unstable.
Can someone help me?