The activation - a mandatory phase of Windows Vista. After installing Windows Vista until it activates in the operating system will not work some functions. If within 30 days of Windows Vista is not activated, it becomes possible reduced functionality mode. Ceases to function ReadyBoost, interface Aero, defender of Windows, the desktop periodically says that using unlicensed copy of Windows, the operating system restarts every hour. But the opportunity to activate Windows all the same remains as via the Internet or by telephone. In the case of suspicion of the legality of your Microsoft OS, Windows Vista may in such cases to seek re-activation. Because most frequently used Boxed and OEM versions of Windows, will tell a little about the details of their activation.

Enabling OEM version of Windows Vista
In the case of the replacement components may need to reactivate the OS. But after replacing the motherboard reactivate inevitable. For Windows Vista, like previous Windows XP replacement motherboard is equivalent to changing the entire computer. But that should not ears, it is only to call the representation of Microsoft, explain the reasons for re-activation and give you an activation code.

Enabling boxed version of Windows Vista
A holder of boxed versions of Windows Vista activation process even easier, because the boxed product Windows Vista «not tied» to equipment and replacement components will not require reactivation, but even if need be activated, it does not cause problems.

In the Internet there are many conflicting conclusions on the maximum number of activating Windows Vista. For the sake of clarity, we asked questions Microsoft-have. Here's what we responded representative of Microsoft:
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«OEM license for Microsoft operating systems is provided solely for use with computer equipment, which was acquired this software, which is also reflected in the licensing terms. Typically, you can upgrade or replace any components of the computer, saving a license for the original OS Microsoft, and thus to activate the operating system an unlimited number of times, except in the case of replacing the motherboard. You can replace the motherboard only in the event of failure. Boxed version of Windows Vista will be to reinstall and activate an unlimited number of times ».
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Thus goes, that is not such a very difficult situation with the activation of the new operating system Windows Vista, as reported by many news.