You will need to prepare a set of install media for Windows 10 -- which you can download from Microsoft.  You'll need a USB flash drive. Hopefully the system came with a license for Windows 10 -- if it did not, check with your seller;  it if wasn't included with the sale, you'll need to purchase a license for it. [URL]
can you help me how to replace a brand new m2 drive on my computer how will I do that and have my computer run?  note: i can download all the external stuff like steam but the computer will not boot up.  
replacing my m2 hard drive on a latitude e5470