So my aunt's computer came with a free 128GB Sandisk Z400S and I was given it so I thought I might as well use it since my boot up is like 5 minutes long. I have 2 hard drives, a 1TB WD Blue as my boot drive, and a 2TB WD Green as my other, I'm wondering how to install my SSD without having to format either of my hard drives if possible. If reinstalling Windows 7 is easier, I would like to know how to do that as well.
1TB WD Blue - 206 GB used
2TB WD Green - 868 GB used
1TB WD Blue - 206 GB used
2TB WD Green - 868 GB used