Lenovo Y700 SSD upgrade and Windows 10 installation help!

[phillipm.gaming]

Hello everyone!
So i got myself Lenovo Y700 laptop, the one with no SSD so i decided to add it, its a M.2 interface 120 GB WD Green. Also i got Windows 10 retail on USB.
My question is how do I go on about installing everything, do I put in a SSD and than insert Windows USB to install it on the SSD, or do I install it without an SSD and than transfer it. Or is there a better way?
Any feedback would be appriciated!

 

[helpstar]

Install the SSD and install windows to it.

You should better have bought at least a 240GB SSD