Upgrade Windows Home to Windows Pro - Microsoft Support
To upgrade from Windows 11 Home to Windows 11 Pro manually, first check which edition you’re running and your activation state: Select Start > Settings > System > Activation. At the top of the Activation page, you see your edition: either Home or Pro. You‘ll also see if you’re activated under Activation state . Open Activation settings ...
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.”.
在 Windows 中使用智能充电 - Microsoft 支持
为了帮助解决此问题，一些设备制造商在Windows 11中打开智能充电。. 借助智能充电，无需担心拔出设备，使其在较长时间内保持 100% 充电状态- 智能充电可为你充电。. 如果设备已启用智能充电，电池电量将设置为更适合整体电池的较低水平。. 从长远来看，设备 ...
如何登录到 Microsoft 帐户 - Microsoft 支持
Microsoft 个人帐户 工作或学校帐户. 若要登录到 Microsoft 个人帐户，请转到 account.microsoft.com 或选择下面的“ 登录 ”。. 登录. 提示: 如果没有 Microsoft 帐户，可以选择“ 无帐户？. Create一个 ！. 输入用于其他服务的电子邮件、电话号码或 Skype 登录， (Outlook、Excel 等 ...
Applies To:
Microsoft 365 for home, Outlook.com, Microsoft 365 for Mac, Microsoft 365 for Windows, Microsoft account dashboard, Microsoft Edge, Microsoft Teams, OneDrive (home or personal), OneDrive for Mac, OneDrive for Windows
Microsoft 365 语言配件包 - Microsoft 支持
Microsoft 365 语言配件包. 语言包会向 Microsoft 365 添加其他显示、帮助或校对工具。. 你可以在安装 Microsoft 365 之后安装其他语言配件包。. 如果说明中称语言配件包已经进行了部分本地化，则 Microsoft 365 的某些内容仍将以你的 Microsoft 365 副本的语言显示。. 如果某种 ...
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, Project Online Desktop Client, Publisher for Microsoft 365, Visio Plan 2, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Professional 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, OneNote 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Professional 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Project Professional 2016, Project Standard 2016, Publisher 2016, Visio Professional 2016, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Small Business Admin, Office 365 operated by 21Vianet - Admin, Office.com
取消 Microsoft 订阅 - Microsoft 支持
注意: 如果看到了打开定期计费，而不是显示“管理”的链接，这意味着你的订阅已设置为在显示的日期到期，且在此日期之后不会自动扣费。目前没有进一步的操作，你可以继续使用该产品，直到订阅过期。
Applies To:
Microsoft account dashboard
IF 関数 - Microsoft サポート
IF 関数は Excel で頻繁に使用される関数の 1 つであり、ある値と期待値を論理的に比較できます。. そのため、IF ステートメントには 2 つの結果があります。. 1 つ目の結果は比較が True の場合であり、2 つ目の結果は比較が False の場合です。. たとえば、=IF (C2 ...
Applies To:
Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016
激活 Office - Microsoft 支持
尝试引导式支持. 选择下面的 Microsoft 365 版本，了解如何激活 Microsoft 365。. 激活 Microsoft 365 或非订阅版本的 Office. 激活预安装在新 Windows 设备上的 Office. 激活新 Windows 设备上包含的 Office 购买或产品/服务. 从 Microsoft 工作区折扣计划激活 Office. 激活一个全新的 ...
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, OneNote for Microsoft 365, Publisher for Microsoft 365, Visio Plan 2, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Office 2021, OneNote 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Office 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Publisher 2016, Office 2016, Microsoft 365 for home, Office for business, Microsoft Lync for iPhone 2013 operated by 21vianet, Office.com, Project for Office 365
Contact Us - Microsoft Support
Open a service request in the Microsoft 365 admin center. This service is free. Get help and support, whether you're shopping now or need help with a past purchase. Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.
KB5033560：Windows 恢复环境更新 (WinRE) ：2023 年 11 月 30 日
此更新解决了安装 2023 年 10 月 10 日 - KB5031358 (OS 内部版本 22000.2538) 或更高版本的 Windows 更新后可能无法访问 Windows 恢复环境 (WinRE) 的问题。. 在运行 Windows 11 版本 21H1 的计算机上使用 Windows 更新 时，可能会出现此问题。. 重要说明. 某些计算机的恢复分区可能 ...