So a few days ago I was messing around with my start up programs, to make my computer boot a little faster, but when I restarted my computer and was doing other things such as installing the latest drivers for my nvidia GTX 670M an error came up saying that there was no card detected....I've tried completely resetting my PC (full wipe) and resetting the BIOS and it's still not showing up in device manager and can't install drivers/the NVIDIA control panel. This has stumped me, I've been searching everywhere for an answer and can't find one at all please help, I don't want to crack open my laptop just yet to see if anything is messes up there, but I'm getting to that point.