Windows camera, microphone, and privacy - Microsoft Support
Find out how to change privacy settings for your camera and microphone in Windows.
下载Microsoft Authenticator - Microsoft 支持
重要: Microsoft不再支持超过一年的 Authenticator 版本。始终使设备保持最新状态。
查找 Microsoft 帐户用户名 - Microsoft 支持
如果知道用户名和密码但已停止工作,请阅读 我的用户名和密码已停止工作。. 如果你忘记了 Microsoft 帐户用户名或电子邮件地址, 并且 之前已在 Microsoft 帐户上设置了其他 安全信息 ,请按照以下步骤操作。
How to recover a hacked or compromised Microsoft account
Learn how to recover a hacked or compromised account, what to do next, and how to prevent your account from being compromised in the future.
Set up the Microsoft Authenticator app as your verification method
Set up the Microsoft Authenticator app from the Security info page. Depending on your organization’s settings, you might be able to use an authentication app as one of your security info methods.
Microsoft Bing help - Microsoft Support
Explore subscription benefits, browse training courses, learn how to secure your device, and more.
在 Outlook 中Create并添加电子邮件签名 - Microsoft 支持
在Outlook 中,可以为电子邮件创建一个或多个个性化签名。 签名可以包括文本、链接、图片和图像 (,例如手写签名或徽标) 。
Applies To: Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Office for business, Office 365 Small Business, Outlook on the web, Outlook.com, New Outlook for Windows, Outlook on the web for Exchange Server 2016, Outlook on the web for Exchange Server 2019
输入 Office 产品密钥的位置 - Microsoft 支持
我的产品密钥不起作用. 如果 Office 产品密钥不起作用,或已停止工作,应与卖家联系,申请退款。 如果产品密钥是独立于软件购买的,则很可能是被盗的产品密钥,或者是以欺骗方式获得随后阻止使用的产品密钥。
Applies To: Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Office 2016, Microsoft 365 for home, Office.com
How to correct a #VALUE! error - Microsoft Support
If you're new to Excel, you might be typing a formula for subtraction incorrectly. Here are two ways to do it:
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 Web App
Create and add an email signature in Outlook.com or Outlook on the web
Learn how to create and add a signature to email messages you send in Outlook.com.
Applies To: Outlook on the web, Outlook.com, Outlook on the web for Exchange Server 2016, Outlook on the web for Exchange Server 2019