Sign in to your work or school account using two-step verification ...
Important: With two-step verification, you always need two forms of identification. This means that if you lose your phone, your password alone won't get you back into your account. For that reason, we strongly recommend you have three different sign-in methods associated with your account.
Windows Secure Boot certificate expiration and CA updates
What is Secure Boot? Secure Boot is a security feature in Unified Extensible Firmware Interface (UEFI) based firmware that helps ensure that only trusted software runs during a device's boot (start) sequence. It works by verifying the digital signature of pre-boot software against a set of trusted digital certificates (also known as certificate authority or CA) stored in the device's firmware ...
查找 Surface 设备和配件或Microsoft配件的序列号
可通过多种方法查找 Surface 设备、Surface 配件或其他Microsoft配件的序列号。 序列号通常为: 12 位数字代码,或 14 个字符的字母数字代码 (没有空格或短划线) 若要了解如何查找序列号,请选择以下选项卡之一。
Import photos and videos from phone to PC - Microsoft Support
Get the steps for how to transfer photos and videos from your phone to your PC.
为升级 Windows 11 准备就绪 - Microsoft 支持
Windows 11 是一个全新的 Windows 用户界面,使你更接近所喜欢的内容。 凭借直观的导航和简单的组织,Windows 11 拥有全新的外观、更多的应用程序和高效的方式来发挥创造力和生产力。 本指南可帮助你为Windows 11做好准备并做出移动。 当你使用 Microsoft 帐户登录时,你的文件和收藏夹会随你一起Windows 11 ...
Fix graphics device problems with error code 43 - Microsoft Support
Learn how to fix graphics device driver error code 43 in Windows 10.
Securely browse the web in Microsoft Edge - Microsoft Support
With online threats getting more advanced day by day, it is important to prioritize the safety of your web browsing. Microsoft Edge offers several features and practices that can enhance your online security and protect your personal information. Follow these guidelines to browse the web securely in Microsoft Edge.
在 Windows 中添加或安装打印机 - Microsoft 支持
当打印机或一体的设备直接连接到 Windows 设备时,打印机通常会自动安装,并且可以立即开始打印。 Windows 支持大多数开箱即用的打印机,因此在大多数情况下,不需要安装特殊的打印机驱动程序或软件。 但是,可以通过Windows 更新获取其他或更新的驱动程序。
Übersicht über Formeln in Excel - Microsoft-Support
Meistern Sie die Kunst der Excel-Formeln mit unserem umfassenden Leitfaden. Erfahren Sie, wie Sie Problemlos Berechnungen durchführen, Zellinhalte bearbeiten und Bedingungen testen.
Applies To:
Excel for Microsoft 365, Excel 2024, Excel 2021, Excel 2019, Excel 2016, My Office for iPhone