How do I dual boot my Dell latitude E7470?

I'm to the community and to hackintosh..

I already have windows installed I don't want to restore. Here are my specs: Intel I5 6300U Intel hd grapics 520 8gb ram 256gb m.2 ssd

I tried researching about how to on my model but all I found is other models and ebook things (very random I know)

I want to know how on my exact model cause there might be problems....