So here is the thing, I am assembling a new pc. The Harddisk got delivered quickly than the other components. So I installed it in my older, created new partitions, and put some files into it. However When all the components arrive I will use the new hdd only. So During installing the windows(10 pro x64) will the data i saved be erased, or will be there as it is. (I have left the first partition in the new disk empty. )