Windows Media Player is available for Windows-based devices. Use this table to find the right version of the Player for your system. (If you've got a Mac, you can download Windows Media Components for QuickTime to play Windows Media files.)

使用 vlookup、hlookup 和其他函数（如 index 和 match）根据您输入的值搜索和查找数据。 本文将让您快速回顾 vlookup，然后链接到更多内容。

For Windows 10. In the search box on the taskbar, type control panel, and then select Control Panel.. For Windows 8.1 / Windows RT 8.1. Swipe in from the right edge of the screen, tap Search (or if you're using a mouse, point to the upper-right corner of the screen, move the mouse pointer down, and then click Search), enter Control Panel in the search box, and then tap or click Control Panel.

Important: If the individual you want to transfer the subscription to hasn't purchased it yet and they're also currently sharing your subscription, (for example, they're a member of your Microsoft Family), make sure you stop sharing with them before they activate the new subscription.

Find help and how-to articles for Windows operating systems. Get support for Windows and learn about installation, updates, privacy, security and more.

To open Action Center, do any of the following: On the right end of the taskbar, select the Action Center icon.

Press and hold (or right-click) the MP4 file you want to play, select Open with, and then choose your preferred file player from the list of applications.

安装 Windows 11. 在针对你的特定电脑测试和验证 Windows 11 升级后，Windows 更新将指示它已准备好安装。 若要检查 Windows 11 是否已为你的设备准备就绪，请转到“开始” “设置” >“更新和安全性” >“Windows 更新” ，然后选择“检查更新”。 如果升级适用于你的设备，并且想要继续，请下载并安装它。

Note: Use these steps for Windows programs.If you're having problems with an app you got from Microsoft Store, go to Fix problems with apps from Microsoft Store.

Note: If you installed OneNote before you install and activate Microsoft 365 or Office 2019, then the end-user license that appears in OneNote will display as “Home and Student.”As soon as you’ve activated your edition of Microsoft 365 or Office 2019 and then restart OneNote, your license will be applied to OneNote, even though the default license for it may still be displayed as “Home ...