Microsoft has the newly released Windows 8 Pro Operating System as a download for $39.99 for limited time. Offer valid till January 31, 2013 and is limited to five upgrade licenses per customer. To install Windows 8 Pro, customers must be running Windows XP SP3, Windows Vista, or Windows 7.

Windows 8 Pro gives you everything in Windows 8 plus enhanced features that help you easily connect to company networks, access files on the go, encrypt your data, and more.