Genuine Windows Vista® Business 32-bit, Genuine Windows Vista® Home Basic 32-bit, Genuine Windows Vista® Business with downgrade to Windows XP Professional custom installed, FreeDOS
Genuine Windows® 7 Professional 32-bit, Windows XP Professional (available through downgrade rights from Genuine Windows® 7 Professional), Genuine Windows® 7 Home Premium 32-bit, Genuine Windows® 7 Home Basic 32-bit, Genuine Windows® 7 Starter
This system may require upgraded and/or separately purchased hardware and/or a DVD drive to install the Windows 7 software and take full advantage of Windows 7 functionality. See http://www.microsoft.com/windows/windows-7/ for details.
HP is committed to providing our customers with information about the chemical substances in our products as needed to comply with legal requirements such as REACH (Regulation EC No 1907/2006 of the European Parliament and the Council). A chemical information report for this product can be found at: www.hp.com/go/reach.