You need your Windows Vista product key to reinstall the operating system. If you've lost your key code, but Vista is still installed, here's what to do. The Activation Wizard in Microsoft Product Activation is a technology used by in several of its, most notably its and its. The procedure enforces compliance with the program's by transmitting information about both the used to the program and the user's computer to Microsoft, inhibiting or completely preventing the use of the program until the validity of its license is confirmed. The procedure has been met with significant criticism by many consumers, technical analysts and computer experts, who argue that it is poorly designed, highly inconvenient and ultimately does nothing to prevent. The process has been successfully on multiple occasions. The Activation Wizard in When installing a copy of Windows or Office, the user is asked to input a unique product key supplied on a included with the program, which is later verified during activation. Immediate activation is not required following installation, but the program must be activated within a specific period of time in order to continue to function properly. Throughout this grace period, the user will be periodically reminded to activate the program, with warnings becoming more frequent over time. Certain versions of Windows and Office are available under a, where a single product key is used for multiple installations. Programs purchased under this license must still be activated, with the exception of and all versions of Office released prior to. ![]() ![]() Businesses using this licensing system have the option of using Microsoft's activation or creating and managing their own. If Windows is pre-installed on a computer by an (OEM), the operating system is automatically activated without the need for interaction from the user. In this case, the copy of Windows installed does not use the product key listed on the certificate of authenticity, but rather a master product key issued to OEMs called a (SLP) key. On each boot, Windows confirms the presence of specific information stored in the by the manufacturer, ensuring the activation only remains valid on that computer, even if the product key is used on another machine. After grace period [ ] If activation is not performed within the grace period or fails because of an illegal or invalid product key, the following restrictions will be imposed on the user: • In,, and, after a grace period of 30 days, the operating system cannot be used at all until the activation process is completed successfully. • In RTM, after a grace period of 30 days, the operating system will boot only into a reduced functionality mode. The reduced functionality varies based on whether the operating system is simply out of grace or has undergone a failed activation. In the former case, built-in games and premium features like are disabled, and the system is rebooted every hour; in the latter case, certain premium features are disabled and some content is not available from. • In,,,, and, after a grace period of 30 days (60 days for Windows Server 2008), the operating system will add a text message in the bottom-right hand corner of the screen stating that the copy of Windows in question is not valid, set the desktop background to black, allow only critical and security updates to be downloaded from Windows Update and give periodic reminders to activate the operating system. However, the operating system otherwise functions normally. • In,,,,, and, the 30-day grace period has been removed. If the operating system is not activated, there is a watermark showing the edition of Windows (although it does not show to activate) on desktop, personalization features (in PC settings [simply Settings in Windows 10], it is located under Personalize in Windows 8, under PC & devices > Lock screen in Windows 8.1, and under Personalization in Windows 10) are disabled. ![]() Entire Screen notification appears periodically, roughly once in 6 hours. However, the operating system otherwise functions normally. [ ] • In,,,, and, after a grace period of 30–60 days for Office 2010 and 14–60 days in Office 2013 or opening the program 25 times for Office 2007 and 50 times for Office 2003 and XP, the programs will enter a reduced functionality mode, where files can be viewed but not edited. When activation takes place, the program saves a record of the verification data in the user's computer. If the system is booted up with significant hardware changes, the application will likely require reactivation to prevent the same copy of the program being installed on two different systems. On, the activation process can also generate a 'digital entitlement', which allows the operating system's hardware and license status to be saved to the activation servers, so that the operating system's license can automatically be restored after a clean installation without the need to enter a product key. During activation [ ] Activation is performed with a utility supplied with Windows and Office called the Activation Wizard. ![]()
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