go into safe mode with networking (hit f8 before windows splash screen). got to computer and right click....choose properties. now choose device manager. see if the card shows up there....if it does uninstall it and click delete drivers. then go to nvidia's home page and downloand then install the latest drivers, reboot and see if its fixed. let me know if this works
ddrrr sorry laptop you can't do any of that....didn't know as it wasn't stated....try to do a system restore to prior to you uninstall...if that doesn't work you should probably just reload windows then and get everything back to factory defaults.
urm hey i have got NVIDIA back but now it will only let me on safe mode everytime i try and get into start windows normally in comes up with this old blue screen coming up with errors but i dont want to keep entering safe mode because it has no sound and its old
well nvidia is fixed thankyou for that but the blue screen isnt i put the solution for the nvidia problem but i put a new ask the community all about the blue screen and it has a better description if you want to have a look at that