DirectX Device Creation failed

[TheSplasher]

So, I know this has been discussed quite a lot, but I couldn't find anything that really answered my questions (Unanswered questions about also etc.) So do you guys know what to do? 

My game constantly crashes right now, and when I try to open it up again, it says the 'title'. 

My specs (I'm not good with this and don't know what is relevant, but): 

Nvidia Geforce GTX 960M

Intel Core i7

My computer is an Acer Aspire V 17 Nitro - Black edition

Hope this helps, but as I said, I'm quite the noob at mentioning the specs...