了解收到“此电话号码已被占用”消息时应执行的操作。 如果在将电话号码添加到帐户时收到“此电话号码已被占用”消息，则表示该电话号码已与另一个 Microsoft 帐户相关联。

Tip: If you're using a wireless display adapter, connect to an HDMI port on newer TVs, then wirelessly connect your PC to it.After connecting your wireless display adapter to your TV, go to your Windows 11 PC, press Windows logo key + K to open Cast, then select your wireless display adapter.

Check the Xbox services, games, and apps for any service outages.

數位Windows 11授權會與裝置相關聯。 如果您進行了重大變更，例如更換主機板，Windows 將會找不到符合裝置的授權。 若要協助解決此問題，請參閱在硬體Windows重新啟用更新。 如果您收到錯誤碼，而這裡的資訊都沒有幫助時，請參閱取得 Windows 啟用錯誤的說明。

注意: 可使用上述步骤在 iPad 或 iPhone 中打开通过 OneNote for Windows 创建的任何笔记本。但最初使用 OneNote 2010 for Windows 先前版本创建的笔记本不会与 iPad 或 iPhone 上的 OneNote 同步。 若要在不同设备间同步此类笔记本，必须先将 Windows 电脑 ...

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Multiply numbers in different cells by using a formula. You can use the PRODUCT function to multiply numbers, cells, and ranges.. You can use any combination of up to 255 numbers or cell references in the PRODUCT function. For example, the formula =PRODUCT(A2,A4:A15,12,E3:E5,150,G4,H4:J6) multiplies two single cells (A2 and G4), two numbers (12 and 150), and three ranges (A4:A15, E3:E5, and H4 ...

To learn more, download and install PC Health Check app. After you install Windows 11. When Windows 11 is installed on a device that does not meet the minimum system requirements, we'll notify you using a watermark on your Windows 11 desktop.

Here's an example of how to use VLOOKUP. =VLOOKUP(B2,C2:E7,3,TRUE) In this example, B2 is the first argument—an element of data that the function needs to work.For VLOOKUP, this first argument is the value that you want to find.

Microsoft Authenticator 将帐户凭据和相关应用设置（例如帐户顺序）备份到云。 然后，你可以使用该应用在新设备上恢复信息，从而避免被锁定或不得不重新创建帐户。