Find solutions for Xbox account and profile issues, manage settings, and get support for your Xbox experience.

Activation helps verify that your copy of Windows is genuine and hasn’t been used on more devices than the Microsoft Software License Terms allow. There are two methods to which you can activate your product: Online via the internet, and by using the Product Activation Portal. Online: When you begin activation, Windows will try to use your internet connection to activate online. If you have ...

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

Learn what to do when you see error 0x87E107DF so you can launch a game on your Xbox One console.

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

The new digital workflow provides a more secure, reliable, and user‑friendly activation experience and helps prevent fraud. While the process has been updated, offline activation capabilities remain supported. Customers who rely on traditional offline activation can continue using it without changes to their environment. The Product Activation Portal enables activation for a wide range of ...

Phishing (pronounced: fishing) is an attack that attempts to steal your money, or your identity, by getting you to reveal personal information -- such as credit card numbers, bank information, or passwords -- on websites that pretend to be legitimate. Cybercriminals typically pretend to be reputable companies, friends, or acquaintances in a fake message, which contains a link to a phishing ...

How to add a signature to your Word documents. You can also use the Signature Line command in Word to insert a line to show where to sign a document.

Windows iOS Android View protected files in Windows using the Microsoft Purview Information Protection viewer If you are trying to open a protected file in Windows and it does not open properly, then you will likely need to use the Microsoft Purview Information Protection viewer for the desktop. The information protection viewer supports the following file types and environments.

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。