I have recently purchased a new license copy of Windows 7 Ultimate edition and installed it on my Sony Vaio desktop computer. Everything went as expected and it is up and running with out any problem. I then thought of to install the same Windows edition on my fathers laptop but even after successful installation, it is still asking me for the activation key. I had tried using the same key which I am using on my computer but the laptop is not accepting the key.
So this raised a lot of questions in my mind. Like on how many computers can I use this same product key; how many times I can install Windows 7 and use the same activation key. Moreover, if I upgrade my computer with new hardware including motherboard, hard drive etc then is it like I have to purchase a new serial key for activation?
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