Hi Conrail,Most modern hard drives used in home PCs now are SATA. Just make sure you replace it with a HDD with "High" RPM. Aim for one with 7200 rpm. You can Also go for a Solid State disk, The offer faster access speed but are a lot more expensive.
How to get Windows 10 now: how to download and install Windows 10 even if GWX.exe is missing