I want to have a dual system of Windows of Windows 8 Pro and windows 7 Home Premium. I upgraded from my old BONES (Win7HP) for Win8 Pro. Is it possible to recover my old OS back to get a double window system?

My laptop, a series of satellites M840 Toshiba (i7 processor), which I bought in mid June 2012. Because my laptop is eligible for Windows upgrade offer, I decided to upgrade the old OS (Win7 HP) to the new operating system (Win8pro) for just a price of $ 17.99 (should be USD). After the upgrade, I discovered that I could have 2 OS on a single disc, but it was too late because I already upgraded to Pro Win8. I have a backup before I installed Pro Win8, so can I use this backup to recover my old OS and continue to have a dual operating system on a hard drive? and my key Win8 Pro can be used again on this same laptop? I also improved my Win8 Pro with Windows Media Center. Thanks for your help in advance!

Your key to upgrade of Windows 8 is good for use on another computer, so it is used to upgrade whatever operating system is on a different computer.

There is no way for a dual boot of the host operating system with an upgrade disc.

Tags: Windows

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