Summary This article explains how to activate Windows online or offline using an Installation ID and Confirmation ID across Windows 11, Windows 10, Windows 8.1/8, Windows 7, Windows Vista, and Windows XP. It explains online activation steps, offline activation through the Product Activation Portal, and three offline workflows: Activation page, SLMGR command prompt, and SLUI command prompt. It ...

Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.

需要有关 XBOX 主机、XBOX 游戏或 XBOX 网络的帮助?了解如何与我们联系。

Find out how to submit a case review and learn more about your XBOX enforcements.

Learn how to find a Windows product key for activation, and when you'll use a digital license instead.

Support for Office 2021 will end on October 13, 2026. Learn more about your options for Office.

Jos työpöydällä ei näy kuvakkeita, napsauta hiiren kakkospainikkeella työpöytää (tai paina sitä pitkään kosketuslaitteessa) ja valitse Näytä. Varmista, että Näytä työpöydän kuvakkeet on valittuna. Jos näin ei ole, valitse se.

了解如何查找用于激活的 Windows 产品密钥，以及何时改用数字许可证。

What is Microsoft Ink Canvas? Microsoft Ink Canvas is an AI-powered, pen-first experience designed for the moments before an idea becomes a document, prompt, image, or plan. Built for visual thinkers who use pen and touch as part of how they create, Ink Canvas gives you a flexible place to start - sketching, annotating, generating images, and summarizing your ideas into text directly on the ...

Summary A BitLocker recovery key is needed when BitLocker can’t automatically unlock an encrypted drive in Windows. This is a 48‑digit number that lets you regain access to your drive.