Learn how to turn on HDR video streaming to watch high dynamic range (HDR) content on your Windows PC.

Discover how Microsoft Copilot, your everyday AI companion, can help you achieve anything you can imagine.

Summary Windows 11, versions 22H2 and 23H2 share a common core operating system with an identical set of system files. Therefore, the new features in Windows 11, version 23H2 are included in the latest monthly quality update for Windows 11, version 22H2 but are in an inactive and dormant state. These new features will remain dormant until they are turned on through the “enablement package ...

Note: Microsoft Project for the web will soon become Microsoft Planner. You can continue using most of the Project for the web capabilities in the new Planner once it's rolled out to your organization. Learn more about the new Planner in Frequently asked questions about Planner and Planner help & learning.

简介 关于此 .NET Framework 4.8 Microsoft .NET Framework 4.8 是对 Microsoft .NET Framework 4、4.5、4.5.1、4.5.2、4.6、4.6.1、4.6.2、4.7、4.7.1 和 4.7.2 的高度兼容的就地更新。 脱机程序包可用于因无法连接 Internet 而导致 Web 安装程序无法使用的情况。 此包比 Web 安装程序大，并且不包括语言包。 我们建议您使用 Web 安装 ...

Office for the web programs are included in most Microsoft 365 plans. Click a document, or use the three-dot Open Menu in a library to open Word, Excel, PowerPoint, OneNote, and PDF files in your browser. Outlook attachments and Lync Web App meeting notes also open in Office for the web.

发生严重问题时，Windows 11可能会意外关闭或重启，导致你短暂看到错误消息，例如“你的设备遇到问题，需要重启”。 然后，Windows 11将自动重启。 这也称为 停止代码错误、bug 检查、内核错误 或 蓝屏错误、黑屏错误或 BSOD。

Caution: Some fingerprint peripherals labelled as "Windows Hello compatible" will enable Enhanced Sign-in Security and other Windows features that require Enhanced Sign-in Security on your device. These peripherals do not pose a security risk, but if you would like to use them with Enhanced Sign-in Security before it is officially supported in Windows, we recommend plugging in the fingerprint ...

Find your product key to activate WindowsA product key is a 25-character code that's used to activate Windows and helps verify that Windows hasn't been used on more PCs than the Microsoft Software License Terms allow. Windows 11 and Windows 10: In most cases, Windows 11 and Windows 10 activates automatically using a digital license and doesn’t require you to enter a product key. However, if ...

Learn how to manage automatic file downloads from your Windows apps when you use an online storage provider, such as OneDrive Files On-Demand.