Hi everyone! I am asking for your help, because I am unsure about what to do. I have a laptop, with 2 separate hdd (1 in the media bay). Hdd1 = Windows 7 Hdd2 = Windows 8 Pro Currently, I am using my computer in dual-boot and my copy of Windows 8 is activated via KMS. But I have my legit key for Pro and my legit key for Media Center. And I would like to install media center. So, I though about the following : - Activate Windows 8 Pro with my real key - Backup activation file - Upgrade to Media Center and activate - Backup activation file Then, when I will decide to run Windows 8 as my only os, do the following (while off-line) - Install Windows 8 Pro with legit key - Restore activation file (should then be activated) - Install Media Center with legit key - Restore activation file of Media Center (should then be activated) Is this the way to go? Is reinstalling Windows 8 on a different drive (HDD1 rather than HDD2) can prevent activation restore? Also, my media bay can be swapped with the following : - Hdd - Usb 3.0 module (my computer only has Usb 2.0, but a module that connect directly to the mb can be put in the media bay) - Dvd writter Does swapping these devices can disable Windows 8? In Windows 7, I was activated via SLIC so it wasn't a real bummer. Thanks!