Contact Support For help with your Microsoft account and subscriptions, visit Account & Billing Help. For technical support, go to Contact Microsoft Support, enter your problem and select Get Help.If you still need help, select Contact Support to be routed to the best support option. Admins

Select Add a keyboard and choose the keyboard you want to add. If you don't see the keyboard you want, you may have to add a new language to get additional options. If this is the case, go on to step 4.

嵌套 Excel 函数 在某些情况下，您可能需要将相应函数作为另一函数的参数使用。 例如，以下公式使用嵌套 AVERAGE 函数 ，并将结果与值 50 进行比较。 1. AVERAGE 和 SUM 函数嵌套在 IF 函数中。 有效返回值 当将嵌套函数作为参数使用时，该嵌套函数返回的值类型必须与参数使用的值类型相同。

Important: In Excel 2016, Excel Mobile, and Excel for the web, this function has been replaced with the CONCAT function.Although the CONCATENATE function is still available for backward compatibility, you should consider using CONCAT from now on. This is because CONCATENATE may not be available in future versions of Excel.

Important: you should limit the number of administrators on your Windows device because administrators have complete control over the system.Administrators can change settings, install software, and access all files. If too many people have this level of access, it could lead to security risks like malware installation or unwanted changes to your system.

断开设备与 Microsoft Store 的链接 如果无法从 Microsoft Store 中下载内容，则你可能已达到了设备限制。 通过删除不使用的设备或者不再有权访问的设备来管理你的限制。 要断开与某个设备的链接，请执行以下操作：

デバイス マネージャーを使用してドライバーを更新または再インストールするWindowsのドライバーを更新する方法について説明します。 注: Windowsでドライバーの更新プログラムを取得する最も安全で安全な方法は、常にWindows Updateです。Windows Updateに問題がある場合は、Update Windowsのリンクの ...

If you are having issues installing or updating Gaming Services on your PC, or if you are noticing that the Xbox app for PC is launching with missing content, you may want to download and run the Gaming Services Repair Tool for PC.

Active subscriptions have been cancelled so you don’t continue to get charged. If you have Auto-recharge enabled and cancel your account without first cancelling your subscription, you will continue to be charged until your account has been permanently closed in 60 days.

To open the On-Screen Keyboard. Go to Start , then select Settings > Accessibility > Keyboard, and turn on the On-Screen Keyboard toggle. A keyboard that can be used to move around the screen and enter text will appear on the screen. The keyboard will remain on the screen until you close it.