Hi SengKuang, When you purchase ‘Windows 8’ upgrade offer at US$14.99, you will get a link in your email address.As you click on the link it will download a Windows 8 upgrade installation copy onto the computer and start the upgrade, meanwhile it will not give an option to install it onto different partition. Hence you will not be able to install the ‘Windows 8’ upgrade onto the computer as a dual boot. You need to purchase a retail version of ‘Windows 8’ and you will be able to install it on different partition as you have performed it using the ‘Windows 8’ Preview version. Please reply for any queries.
Hi, I understand that the Win 7 user can install Win 8 Release candidate at anotherpartition to enable him to choose which OS he would like to boot when he startsthe PC. When I bought the new Win 7 Pc recently, I came with an offer to upgrade it to Win 8at UD14.99. May I know if this upgrade can be installed at another partition of the hardisk to enable the user have a choice to boot either from Win 7 or Win 8 (same user licence)? Or is the user need to buy another new Win 8 licence at retail price to enable this doubleboot option? Thank you Low  
Win 8 Upgrade - Does double boot (Win 7 & Win 8) option allowed under the same 
user licence?