Adding a drive to your exisiting system is pretty easy. I presume it is a tower type, you just have to hook up the drive to the 2nd SATA port. There should be cable with your machine, if not, one should be included with your drive. Connect the power and you should be good. There are some cases that in the BIOS it is disable, you can check there to make sure it is auto detect (work most of the time) and just go into windows. Windows should see the drive with no issue if not, you can double check via right click on my computer (or computer with window 7) and left click manage, you should see disk management. you should see your drive (format or not) in there. Assign a letter and format NTFS and you are golden.