Activation is designed to provide a transparent activation experience for users . If activation does not occur immediately after the operating system is installed, Windows 7 and Windows Server 2008 R2 still provide the full functionality of the operating system for a limited amount of time (a grace period) . The length of the grace period is 30 days for Windows 7 and Windows Server 2008 R2 . After the grace period expires, both operating systems remind the user through notifications to activate the computer.
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