Fix problems signing in to the Xbox app - Microsoft Support
On your PC, go to Xbox.com and select Sign in.If there are problems with your account, the instructions will help you solve them. If you can’t go beyond the sign-in screen, select Forgot my password and follow the instructions.
Windows help and learning
Find help and how-to articles for Windows operating systems. Get support for Windows and learn about installation, updates, privacy, security and more.
我运行的是哪个 Windows 操作系统版本？ - Microsoft 支持
在 Windows 8.1 或 Windows RT 8.1 中查找操作系统信息. 要查找设备运行的 Windows 版本，请按 Windows 徽标键 键 + R，并在“打开”框中键入“winver”，然后选择“确定”。. 如果你的设备运行的是 Windows 8.1 或 Windows RT 8.1，那么有关详细信息，可以参阅以下内容：
如何在 Windows 中设置和测试麦克风 - Microsoft 支持
在"声音设置"中，转到"输入 "以查看连接的麦克风。 如果麦克风是蓝牙，请选择"添加设备"。
如何取消 Xbox 数字产品购买 | Xbox Support
注意 取消 Xbox 订阅时，可能会收到立即取消或在计费周期结束后取消的选项。 如果立即取消，你将立即失去通过该订阅收到的所有访问权限和特权。 如果选择在计费周期结束后取消，则订阅权益将一直延续到下一个付款期，并且不会再向你收费。
Language Accessory Pack for Microsoft 365 - Microsoft Support
Learn how to download, install, and configure Language Accessory Packs for Microsoft 365 for additional display, help, and proofing tools.
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, Project Online Desktop Client, Publisher for Microsoft 365, Visio Plan 2, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Professional 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, OneNote 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Professional 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Project Professional 2016, Project Standard 2016, Publisher 2016, Visio Professional 2016, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Small Business Admin, Office 365 operated by 21Vianet - Admin
使用 Xbox 玩云游戏 | Xbox Support
了解如何使用 Android、iOS 或 Windows 设备在 Xbox 上玩云游戏。
Excel functions (alphabetical) - Microsoft Support
Function name. Type and description. ABS function. Math and trigonometry: Returns the absolute value of a number ACCRINT function. Financial: Returns the accrued interest for a security that pays periodic interest ACCRINTM function. Financial: Returns the accrued interest for a security that pays interest at maturity ACOS function. Math and trigonometry: Returns the arccosine of a number
Applies To:
Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016, Excel Web App
如何使用远程桌面 - Microsoft 支持
设置你想要连接以使其允许远程连接的电脑： 确保你拥有 Windows 11 专业版。 若要检查这一点，请选择“开始 ”，然后打开“设置 ”。 然后，在“系统 ”下，选择“关于 ”，并在“Windows 规范”下，查找“版本”。 有关如何获取 Windows 11 专业版的详细信息，请转到“将 Windows 家庭版升级为 Windows ...
Get help with a digital code or gift card | Xbox Support
All Xbox digital codes are 25 characters long, include both numbers and letters, and are formatted in five blocks of five characters (xxxxx-xxxxx-xxxxx-xxxxx-xxxxx).