Note: the website or application you're trying to sign into must support passkeys in order for them to work.The good news is that the industry is quickly adopting passkeys as an authentication mechanism, so more and more websites and applications are beginning to offer this feature.

Erfahren Sie, wie Sie Sound- oder Audioprobleme in Windows beheben.

sum_range Optional.The actual cells to add, if you want to add cells other than those specified in the range argument. If the sum_range argument is omitted, Excel adds the cells that are specified in the range argument (the same cells to which the criteria is applied).. Sum_range should be the same size and shape as range.If it isn't, performance may suffer, and the formula will sum a range of ...

Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Surface Laptop Studio 2

Important: If your device is out of support, it is no longer receiving security updates from Microsoft and may become more vulnerable to security risks and viruses.For this reason, we strongly recommend that you update to the latest version of Windows. Each version of Windows is supported for 18 months.

Windows Update recommends a reinstall after an update installation fails. If an update fails to install because of problems related to system files or components, you might see the following message in the Windows Update page in Settings:. Reinstall your current version of Windows to repair system files and components.

如果你遇到了无线显示器或无线扩展坞连接问题，请尝试以下操作以修复问题： 请确保你的 Windows 10 设备支持 Miracast。 下面介绍如何在电脑上检查：选择“开始” 按钮，键入“连接”，然后从结果列表中选择“连接”。 在“连接”应用中，文本将告知你 Windows 10 设备是否支持它。

If you don't want to use OneDrive, the easiest solution is to unlink it. Follow the steps in Turn off, disable, or uninstall OneDrive, for how to unlink, hide, and uninstall OneDrive from your PC.

Important: Bookmark names must begin with a letter.After that, they can include numbers and letters, but not spaces. If you need to separate words, you can use an underscore ( _ ). For example, First_heading.

Connect with experts, discuss the latest Outlook news and best practices, and read our blog. Outlook Tech Community. Get help in the community. Ask a question and find solutions from Support Agents, MVPs, Engineers, and Outlook users. Outlook Forum on Answers. Suggest a new feature.