Dell Latitude D510 100GB 2.5" IDE Hard Drive with Caddy, Windows XP Pro and Drivers Installed Windows XP Professional SP3 Installed Most Common Drivers Installed, Alternative Drivers Saved on HD Buyer's responsibility to have a Product Key for the installed operating system. Comes with instructions on how to install hard drive and put in your product key. Photo is representative only - hard drive make and model varies but will match specifications stated in the listing