Students in Australia are also eligible for the discount, but won't be able to order until Oct. 22.
"Windows 7 upgrade" news, interviews, and features
News about Windows 7 upgrade
The company encourages business customers to move even before the OS is available worldwide Oct. 23
Freebie ends around 11 a.m. ET, 8 a.m. PT
Features about Windows 7 upgrade
Here's how to tackle the three biggest showstoppers of upgrading to Microsoft's latest OS