Plug and play. Pre-Installed Genuine Windows 10 Professional. When you connect in the drive, it is already completely configured with the most recent Windows updates and drivers loaded, so you can start using it right away.
You are buying a hard drive that already has Windows installed. This is excellent for building new computers or upgrading a failing drive in an existing one.
There is nothing you need to do if Windows 10 Pro was already pre-installed on your machine. Windows will automatically identify and activate the hardware-embedded digital license on your system.
If your PC came with Windows 7 Pro, don't worry! You can easily enter your 25-digit license key, which can be found on the Windows COA label. This drive makes upgrading to the latest version of Windows a breeze.
The brand and model may change based on available supply, but they will come from a reputable source (Seagate, Samsung, Western Digital, Hitachi, HGST, Toshiba, etc).
Drives have been thoroughly examined and tested using a variety of diagnostic tools to make sure they are in flawless operating condition.
DRIVES WORK ONLY IN LEGACY MODE! DRIVES ARE MADE MBR !!!
In newer models released after 2014, you might need to access the BIOS and switch Secure Boot to Legacy/CSM Boot. It only takes a few minutes and is really easy. (There are a ton of videos on YouTube that will demonstrate how to accomplish it. Simply type "allow legacy boot" into a search engine to find it.