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Can Windows 7 be activated by the key that has activated Windows 10?
I use guest Windows 10 in VirtualBox on host Linux. Windows 10 has already been activated by a valid Windows 7 product key. Assuming that I will install guest Windows 7 in the same VirtualBox on the same motherboard, can Windows 7 be activated by the same product key? Can both Windows 7 and 10 be activated with the same key on the same motherboard?