General Important note: -if your desktop was previous running Windows 10 Home or Pro.. with a genuine license, You need to replace new Hard drive disk (HDD) with the same version of Windows 10, so no Windows key code needed. For Example, if it did run W10 Home then will replace other HDD with W10 Home on that desktop, you may not need to change W10 Home key code to activate again. Otherwise, your laptop need to buy Windows 10 Home Key code to activate that version of Windows 10.

-Remember: only Windows 10 Pro key code (25 digits) to activate W10 Pro on both 32 bits or 64 bits system. Similarly, Windows 10 Home key code to activate W10 Home on both 32 bits or 64 bits system.

Important note for buyer: Just selling 320GB HDD only (random main brand name: WD, Segate, Hitachi..) for Dell Optiplex desktop, read more below:

-Dell Optiplex GX280 GX520 GX620 desktop

-Dell Optiplex 330 745 755 desktop for all chassis (excluding Ultra SFF 745 using 2.5") 

 -Hard drive capacity: 3.5" SATA 320GB hard drive (not PATA/IDE connector pin)

-Installed: windows 10 Professional 32 bits +Office13 activated

*-Description for buyer this hard drive:

-Check current hard drive on your old desktop and make sure it is the SATA Connector pin (not PATA/IDE connector pin)

-This 3.5" hard drive desktop (not 2.5" hard drive laptop) and 320GB internal hard drive, plug -and -play, up-to-date

-Windows 10 Activation key is required. It is not included. You can buy COA key cheaper on ebay

-After inserting Hard drive to your laptop, Windows 10 Pro will boot up and install pick-up some drivers, maybe need reboot to install the rest drivers.

**.Important Note for buyer:

-Windows 10, you need upgrade RAM at least 3GB to run 32 bits or more to run 64 bits version.

-Although all drivers in Windows 10 did update, but video controller sometimes leave yellow exclamation (see pic. 5), so screen display setting just work at Normal 

This Hard drive used to replace broken hard drive, failing hard drive with your current desktop hard drive

No Caddy included as picture shown, No accessories included

If my 320GB hard drive installed Windows 10 Pro 32 bits not working, let us know and we will help you via email. You could return it back to us and get full refund.

Thank for buying our hard drive.