Sign in with Microsoft
Sign in or create an account.
Hello,
Select a different account.
You have multiple accounts
Choose the account you want to sign in with.
Installing Microsoft Defender - Microsoft Support
Download Microsoft Defender on your devices either by: Scanning the following QR code. Searching for Microsoft Defender in your app store. Sharing with your devices, the following link: Copy link. We encourage you to install Microsoft Defender on at least five devices per person. Important: This article is about the Microsoft Defender app that ...
Applies To: Microsoft Defender on Android, Microsoft Defender on iOS, Microsoft Defender on Mac, Microsoft Defender on Windows
Enable TPM 2.0 on your PC - Microsoft Support
If it is less than 2.0, your device does not meet the Windows 11 requirements. Option 2: Use the Microsoft Management Console. Press [ Windows Key] + R or select Start > Run. Type “tpm.msc” (do not use quotation marks) and choose OK. If you see a message saying a “Compatible TPM cannot be found,” your PC may have a TPM that is disabled.
Word 中使用 UnicodeMath 和 LaTeX 的线性格式公式 - Microsoft 支持
Word 中使用 UnicodeMath 和 LaTeX 的线性格式公式. Microsoft 365 专属 Word Microsoft 365 专属 Outlook 更多... 若要使用键盘插入公式,请按 Alt+ =,然后键入公式。. 您可以使用“数学自动更正”在公式区以外插入公式符号。. 有关详细信息,请参 阅在公式区以外使用“数学 ...
Applies To: Word for Microsoft 365, Outlook for Microsoft 365, Word 2021, Outlook 2021, Word 2019, Outlook 2019, Word 2016, Outlook 2016
Contact - Microsoft Support
We're here to help. Tell us your problem so we can get you the right help and support.
Install the latest updates for Windows - Microsoft Support
Windows 11 automatically downloads and installs updates to make sure your device is secure and up to date. This means you receive the latest fixes and security updates, helping your device run efficiently and stay protected. To check for updates manually, select Start > Settings > Windows Update . Check for updates.
Connect to a Wi-Fi network in Windows - Microsoft Support
Select the Network, Sound, or Battery icons ( ) on the far right side of the taskbar to open quick settings. The Disconnected icon appears when you’re not connected. On the Wi-Fi quick setting, select Manage Wi-Fi connections . Choose the Wi-Fi network you want, then select Connect. Type the network password, and then select Next.
SUMIF function - Microsoft Support
If you want, you can apply the criteria to one range and sum the corresponding values in a different range. For example, the formula =SUMIF(B2:B5, "John", C2:C5) sums only the values in the range C2:C5, where the corresponding cells in the range B2:B5 equal "John." To sum cells based on multiple criteria, see SUMIFS function.
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
Excel、PowerPoint、Word のアドインを表示、管理、インストールする - Microsoft サポート
[アプリケーション アドインに対し、信頼できる発行元の署名を必須にする] アドインが発行元の信頼された署名を使用していることをセキュリティ センターでチェックするには、このチェック ボックスをオンにします。発行元の署名が信頼されていない場合、Microsoft 365 プログラムはアドイン ...
Applies To: Excel for Microsoft 365, Word for Microsoft 365, PowerPoint for Microsoft 365, Excel for Microsoft 365 for Mac, Word for Microsoft 365 for Mac, PowerPoint for Microsoft 365 for Mac, Excel for the web, Word for the web, PowerPoint for the web, Excel 2021, Word 2021, PowerPoint 2021, Excel 2021 for Mac, Word 2021 for Mac, PowerPoint 2021 for Mac, Excel 2019, Word 2019, PowerPoint 2019, Excel 2019 for Mac, Word 2019 for Mac, PowerPoint 2019 for Mac, Excel 2016, Word 2016, PowerPoint 2016, InfoPath 2013
下載並安裝或重新安裝 Office 2019、Office 2016 或 Office 2013
如果這是您 第一次 安裝 Microsoft 365,您可能需要先執行一些設定步驟。 請展開下方的深入了解章節。 不過,如果您是要重新安裝 Microsoft 365,已兌換產品金鑰,且有與 Microsoft 365 關聯的帳戶,則請移至 登入以下載 Office章節。
Applies To: Office 2019, Office 2016, Office 2016 for Mac, Office 2013
Install Quick Assist - Microsoft Support
To pin Quick Assist to your taskbar so you can quickly get back to it, after Quick Assist is open, right-click (or press and hold) the icon on your taskbar > Pin to taskbar. If the old app icon still appears on your device, make sure you select the new app icon.