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Pavilion dm4
Microsoft Windows 7 (64-bit)

I just replaced the failed hard disk on my Pavilion dm4 and want to reinstall the Windows 7 that came with it. The Microsoft Windows 7 download page does not recognize the Windows Product Key on my laptop. Can HP provide me with a workable product key so that I can download the Windows 7 ISO and install it? (Is there any other way I can reinstall Windows 7 on the computer?)

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