Open the app, go to the app’s top-level menu, and then select Send feedback. After that, contact Support or go to the Microsoft Authenticator app forum and explain the problem you're seeing and the steps you tried. If you tried all of these steps and are still having issues, we recommend sending your log files for diagnostics.

Type a description for the restore point, and then select Create.

To activate Windows 11 using an internet connection: As Windows 11 will automatically activate if you are connected to the internet, you can confirm your activation status by selecting Start > Settings > System > Activation and looking under Windows.. If online activation fails, first try the activation troubleshooting in Activate Windows.. To activate Windows 11 by phone:

If you get an email about unusual activity on your Microsoft account, or if you’re worried that someone else might have used your account, go to the Recent activity page.You’ll see when your Microsoft account was signed in during the last 30 days, along with any device or app-specific info.

The user account name on a Windows device shows the name of the signed-in Microsoft account or work/school account. To change which user is signed in, select the Start button on the taskbar. Then select the account name icon or picture to see a list of users you can switch to.

你可以下载包含本文中所有示例的示例工作簿。 可以沿用其中的公式，也可以自行创建。下载日期计算示例 其他日期和时间计算 计算当天和其他日期之间的差值 如上所述，DATEDIF 函数可计算开始日期和结束日期之间的差值。 但是，你也可以在 ...

With a Surface Keyboard or Type Cover, you have the flexibility to type comfortably and work your way anywhere. If you're not sure about the model of your device, see Find out which Surface model you have.. What's the difference between Surface Keyboard and Surface Type Cover?

培训：此视频介绍如何在 Android 手机或平板电脑上开始使用 OneNote。 提示： 视频不以你的语言提供？ 请尝试选择隐藏式字幕 。 试一试！ 在 Android 手机或平板电脑上安装 OneNote 后，即可随时随地访问笔记。

下面是在 OneNote for Android 中的一些常见任务和问题的链接。 按“提交”即表示你的反馈将用于改进 Microsoft 产品和服务。 你的 IT 管理员将能够收集此数据。

了解如何通过电脑的 UEFI (或 BIOS) 启用虚拟化，以运行适用于 Android 的 Windows 子系统或适用于 Linux 的 Windows 子系统。 基于 UEFI (或 BIOS) 的说明 如果你的电脑制造商未列出，或者你不确定它是谁，你可以找到你的 UEFI (或 BIOS) 的说明。