Microsoft will be releasing “Windows Activation Technologies (WAT) Update for Windows 7″ which, as its name implies, is an update for WAT , the set of built-in activation and validation components, in Windows 7. The update will detect “more than 70 known and potentially dangerous activation exploits” that attempt to bypass or compromise WAT and will determine whether the copy of Windows 7 that is installed on a PC is genuine. It is also supposed to improve the integrity of key licensing components on the OS and will run periodic validations every 90 days

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New Windows 7 antipiracy update to phone home regularly