Obtain a digital certificate and create a digital signature
Add or remove a digital signature in Office files. Get a digital ID. Find digital ID or digital signature services. About digital signatures and certificates in Office, and buying a digital certificate from a certificate authority or create your own.
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Word 2021, Word 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Office 2016, Excel 2013, Word 2013, Outlook 2013, PowerPoint 2013, Office 2013
Finding your BitLocker recovery key in Windows - Microsoft Support
If your system is asking you for your BitLocker recovery key, the following information may help you locate your recovery key and understand why you're being asked to provide it. Important: Microsoft support is unable to provide, or recreate, a lost BitLocker recovery key.
Download and install or reinstall Office 2019, Office 2016, or Office ...
From the Overview page, select Office apps and on that page, find the Microsoft 365 product you want to install and select Install. To install Microsoft 365 in a different language, or to install the 64-bit version, use the dropdown to find more options.
Applies To:
Office 2019, Office 2016, Office 2016 for Mac, Office 2013
Download and install or reinstall Microsoft 365 or Office 2021 on a PC ...
For Microsoft 365 operated by 21 Vianet go to login.partner.microsoftonline.cn. For Microsoft 365 Germany go to portal.office.de. This completes the download of Microsoft 365 to your device. To complete the installation, follow the prompts in the "Install Microsoft 365" section below.
Applies To:
Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Microsoft 365 for home, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Admin, Microsoft 365 for Mac, Office 365 Germany - Enterprise, Office 365 Germany - Enterprise admin
支付过期未付余额以解锁你的订阅 | Xbox Support
你如何自行解决此问题. 好消息是你可以自行解决此问题。. 你可以为订阅指定其他支付选项以支付逾期未付余额。. 只需登录包含订阅的 Microsoft 帐户，然后按照屏幕说明操作。. 注意 如果你使用同一信用卡购买了其他 Microsoft 服务，则这些服务也可能受到影响 ...
Screen mirroring and projecting to your PC or wireless display
Cast to a display from a Windows PC. You can wirelessly connect your PC to a TV, projector, or other kind of external display that supports Miracast. Turn on your TV, projector, or other display. If you're using a Miracast dongle or adapter, make sure it's plugged in to the display.
Contact Us - Microsoft Support
Open a service request in the Microsoft 365 admin center. This service is free. Microsoft Store support. 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.
下载并安装或重新安装 Office 2019、Office 2016 或 Office 2013
下载并安装或重新安装 Office 2019、Office 2016 或 Office 2013. 如果这是你 第一次 安装 Microsoft 365，则可能需要先执行一些设置步骤。. 展开下面的 “了解详细信息”部分。. 但是如果是重新安装 Microsoft 365，且已兑换了产品密钥并拥有与 Microsoft 365 相关联的帐户，请转 ...
Applies To:
Office 2019, Office 2016, Office 2016 for Mac, Office 2013
当在 Xbox One 上下载游戏或应用时出现错误 87E0000F | Xbox Support
如果你在尝试下载 Xbox One 游戏或应用时遇到问题，可能需要更新你的主机。. 如果要连接到 Xbox Live，必须具有最新的主机软件。. 新游戏在玩之前也可能要求更新。. 要查看是否有系统更新可用，请按以下步骤操作：. 按控制器上的 Xbox 按钮 打开导航页。. 选择 ...
Passkeys overview - Microsoft Support
Passkeys provide a more secure and convenient way to sign in. With passkeys, you can use Windows Hello to sign in with a PIN, facial recognition, or fingerprint, making the authentication process faster and more convenient than ever before.