Game graphics are not working on PC

nVIDIA only sells half of a real GPU to laptop manufacturers, and sells the fragment very cheaply but it's a defective design, relying on the driver for switching on when required, and failing to do so regularly.  The odds are that your control of that terrible piece of junk has been lost.  I'll not waste my money on poor hardware such as that; I cannot tell you from personal experience how to make certain  it runs when it doesn't seem to want to do so. 

Next time, insist on a Radeon GPU, unless those change into mere fragments also, in which case, discontinue wasting money on laptops for gaming platforms. 

@IdaliaTavadon 

Sorry that the news was negative.  Have you read the reply? 

Hi, thanks for the input (sorry I didn't reply earlier). It's definitely something I will look into when buying my next computer. Luckily for me in this case it turned out to be a corrupted save! Lost some in-game time, but I can play. Graphics aren't as good as they could be, but I wasn't doing any gaming when I got this laptop so didn't see it as a priority. Think that might change next time... Thanks for all your time!