Thread: Solved Windows Activation
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11 Nov 2011  

Windows 7 Ultimate SP1 64-Bit

Please check this thread for a possible solution: Pre-Release version expiring

It seems you need to uninstall the pre-release version of SP1 and install the up-to-date RTM version of SP1. This is because what you have is the pre-release version of Windows 7, which has an expiry date.

When I say SP1, I'm talking about the service pack itself, not a complete re-install of Windows 7.
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