Hi, I have a question regarding the installation of the Windows system on two different computers. Here are more details: I bought my laptop 3 years ago with Win 7 professional. The OS was already installed, so I didn't receive any disk. As I understand this is usually happens when retailer sells PCs and buys special version of Windows that he can install on multiple computers with the same product key. Am I correct? So now I am buying another PC without OS at all and I am wondering if I can install the same Windows on that other PC. I don't have a disk but I created system image once I received the laptop. So few questions: 1. How can I check if my version of Windows is retail version and if it can be installed on other PCs? 2. Can I install full Windows with system image? 3. Can I use that OS on additional computer and will it be genuine afterwards? I intend to use both PCs. Thanks, any advise will be appreciated.