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Turn on device encryption - Microsoft Support
In the search box on the taskbar, type Manage BitLocker and then select it from the list of results. Or, select the Start button, and then under Windows System, select Control Panel.In Control Panel, select System and Security, and then under BitLocker Drive Encryption, select Manage BitLocker. Note: You'll only see this option if BitLocker is available for your device.
Look up values with VLOOKUP, INDEX, or MATCH - Microsoft Support
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.
适用于: Microsoft 365 专属 Excel, Excel 网页版, Excel 2021, Excel 2019, Excel 2016
Clipboard in Windows - Microsoft Support
Learn how to use the cloud-based clipboard in Windows, share clipboard items across your devices, and pin items to your clipboard menu.
Windows 登录选项和账户保护 - Microsoft 支持
了解如何访问和管理 Windows 登录选项。 使用密码、Windows Hello或安全密钥解锁设备。 你的生物识别数据将保留在你的设备上,直到你将其删除。 但是,在长时间Windows Hello处于非活动状态后,系统会提示确认是否要继续存储生物识别数据。
Microsoft 365 または Office 2021 を PC または Mac に ...
インストールの準備 作業を始める前に、ご利用の PC または Mac がシステム要件を満たしていることを確認します。 プロダクト キーを既に使用している場合は、アプリを再インストールするか、職場または学校でライセンスが割り当てられていることがわかっている場合は、先に進んで ...
适用于: Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Microsoft 365 家庭版, Office 商业版, Office 365 小型企业版, Microsoft 365 管理员, 由世纪互联运营的 Office 365, 由世纪互联运营的 Office 365 - 管理员版, Microsoft 365 Mac 版, Office 365 Germany – 企业版, Office 365 Germany - 企业管理员版, Office.com
How to close your Microsoft account - Microsoft Support
Note: If you forgot your account info and had to reset your security info, you must wait 60 days before closing your account.
Change the email address or phone number for your Microsoft account
Email addresses and phone numbers associated with your Microsoft account are called aliases and they use the same contacts, online storage, subscriptions, and account settings.
适用于: Microsoft 帐户仪表板
Updating to the latest version of Skype - Microsoft Support
We’re continually releasing updates to our application, based on customer feedback. Check out What's New in the latest updates for Skype on desktop and mobile.
Find the settings/tools/internet options in Microsoft Edge
Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.
Troubleshoot problems with Microsoft Authenticator
Tips: If you're using mobile data, try switching to Wi-Fi and vice-versa. Make sure Airplane mode is off.