Microsoft has started taking Windows 8 preorders starting today in the form of the Pro upgrade version.

Priced at $70, the new DVD copies of the Windows 8 Pro upgrade can be grabbed through select retailers. The online retailers, including Amazon, Staples, Office Depot, Best Buy are offering the Win-8 Pro upgrade version.

The existing customers running Windows XP Service Pack 3, Windows Vista, and Windows 7 will be able to upgrade to the latest OS.

For those of you with the virtue of patience can wait until release day on October 26 to buy the upgrade through Windows.com directly, by using the Windows 8 Upgrade Assistant. And it will cost you only $39.99.

Moreover, if you purchased a Windows 7 PC since June 2, meanwhile, you can get a Windows 8 upgrade for $14.99 only starting Oct. 26.

On the other hand, the Windows 8 powered devices from tech giant, including Asus, Acer, Dell, HP, Samsung and Sony can be preordered starting today from various online retailers.

Via - The Windows Blog