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Windows BitLocker - Microsoft
如果找不到 BitLocker 恢复密钥,并且无法还原任何可能导致需要该密钥的配置更改,则需要使用 Windows 恢复选项 之一重置设备。 重置你的设备将删除所有文件。 Microsoft 支持人员无法提供或重新创建丢失的 BitLocker 恢复密钥。 有关详细信息,请单击下面的标题. 我的 BitLocker 恢复密钥是什么? 为什么 Windows 会询问我的 BitLocker 恢复密钥? 如何在我的设备上激活 BitLocker? 相关主题. 备份 BitLocker 恢复密钥. Windows 10 中的设备加密. Windows 中的恢复选项. 了解在 Windows 中查找 BitLocker 恢复密钥的不同方法,并了解如何在系统上激活 BitLocker。
使 VLOOKUPINDEX MATCH - Microsoft
VLOOKUP 第一个参数是要查找的值。. 此参数可以是单元格引用,也可以是固定值,例如“smith”或 21,000。. 第二个参数是单元格搜索范围 C2-:E7,VLOOKUP 在其中搜索要查找的值。. 第三个参数是单元格范围内包含所查找值的列。. 第四个参数可选。. 输入 True 或 False ...
适用于: Microsoft 365 专属 Excel, Excel 网页版, Excel 2021, Excel 2019, Excel 2016, Excel 2013
Download and install or reinstall Office 2019, Office 2016, or Office ...
Note: The steps to install the 2019, 2016, or 2013 versions of Office Professional Plus, Office Standard, or a stand-alone app such as Word or Project might be different if you got Microsoft 365 through one of the following: Microsoft Workplace Discount Program (formerly known as Home Use Program): If you bought Microsoft 365 for personal use through your company, see Install Office through ...
适用于: Office 2019, Office 2016, Office 2016 for Mac, Office 2013
Windows - Microsoft
你可以使用安装介质(U 盘或 DVD)来安装 Windows 的新副本、执行全新安装或重新安装 Windows。 要创建安装介质,请转到 软件下载网站 ,你可以在这里找到分步说明。 在该网站上,你可以选择 Windows 版本,并使用 U 盘或 DVD 创建自己的安装介质。 要直接转到某个版本,请选择以下链接之一: Windows 7. Windows 8.1. Windows 10 (然后选择“ 立即下载”。 Windows 11 (然后选择“ 立即下载 ”。 重要: 在电脑上安装或重新安装 Windows 之前,请备份你的文件。 了解如何操作 。 要创建安装介质,你需要以下工具: 具有可靠的 Internet 连接的电脑。 下载时间会有所不同,具体取决于你的 Internet 连接。
Uninstall or remove apps and programs in Windows
Select Start > Settings > Apps > Apps & features . Find the app you want to remove, select More > Uninstall. Note: Some apps can't be uninstalled from the Settings app right now. For help uninstalling these apps, follow the instructions to uninstall from Control Panel. Uninstall from Control Panel.
Hotmail - Microsoft
若要在 Outlook.com 中获取支持,请单击此处或选择菜单栏上的帮助,然后输入查询。如果自助服务无法解决问题,请向下滚动到“仍需要帮助?”,然后选择“是”。 若要在 Outlook.com 中联系我们,需要登录。 如果无法登录,请单击 此处。 若要获取其他有关 Microsoft 帐户和订阅的帮助,请访问 帐户和 ...
适用于: Outlook.com
Change your default search engine in Microsoft Edge
Select Settings and more > Settings . Select Privacy, search, and services. Scroll all the way down to the Services section and select Address bar and search. Choose your preferred search engine from the Search engine used in the address bar menu.
Screen mirroring and projecting to your PC or wireless display
Cast to a Windows PC from another Windows PC. On the PC you'd like to project from, select Start > Settings > System > Projecting to this PC . Under Add the “Wireless Display” optional feature to project to this PC, select Optional features . Next to Add an optional feature, select View features, then enter “wireless display.”.
How to sign in to or out of Outlook.com - Microsoft Support
If you don't see your picture at the top of screen, check to see if ad blocking is turned on. Sometimes this prevents the picture from showing. If you don't see see Profile or Account options, you can access them at https://account.microsoft.com/ . If you don't see Sign Out, you can also Sign out manually.
适用于: Outlook.com
Update Windows - Microsoft Support
Update Windows. In Windows 11, you decide when and how to get the latest updates to keep your device running smoothly and securely. To manage your options and see available updates, select Check for Windows updates. Or select Start > Settings > Windows Update . Here's some other info you might be looking for: