了解如何登录以访问 Outlook.com、Hotmail、Live 或 MSN 电子邮件帐户。.

Post questions, follow discussions and share your knowledge in the Outlook.com Community. Hotmail is now Outlook.com. Learn how to sign in to access your Outlook.com, Hotmail, Live, or MSN email account.

解决 Windows 中的蓝屏错误. Windows 11 Windows 10. 如果某个严重问题导致 Windows 意外关闭或重启，则会出现蓝屏错误（有时也称为黑屏错误或终止代码错误）。. 你可能会看到一条消息，指出“Windows 已关闭，以防止损坏你的计算机”或类似消息。. 这些错误可能是由 ...

了解如何解锁 Microsoft 帐户并解决“账户已锁定”错误消息。.

数字许可证（在 Windows 11 版本中称为数字授权）是 Windows 11 的一种激活方法，该方法不需要输入产品密钥。 产品密钥是由 25 个字符组成的代码，用于激活 Windows。 产品密钥将显示为：XXXXX-XXXXX-XXXXX-XXXXX-XXXXX.

使用工作或学校帐户登录到Outlook 网页版. 转到 outlook.office.com 。. 如果未使用工作或学校帐户自动登录，请按照提示输入工作或学校帐户的电子邮件地址和密码。. 按照之前可能已为此帐户设置的任何双重身份验证提示进行操作。. 选择“ 登录 ”。. (如果已登录 ...

The VLOOKUP and HLOOKUP functions, together with INDEX and MATCH,  are some of the most useful functions in Excel. Note: The Lookup Wizard feature is no longer available in Excel. Here's an example of how to use VLOOKUP. =VLOOKUP (B2,C2:E7,3,TRUE) In this example, B2 is the first argument —an element of data that the function needs to work.

Give your PC a Fresh Start. Resetting your PC lets you perform a clean reinstallation and update of Windows while keeping your personal data and most Windows settings intact. In some cases, a clean installation may improve your device's performance, security, browsing experience, and battery life.

Connect with our small business advisors for help making Microsoft 365 products work for you and everyone in your business. Learn more. Install on a PC Install on a Mac Need help? Sign in to download Microsoft 365 or Office. Go to www.office.com and if you're not already signed in, select Sign in.

Choose how much information you want to share with Microsoft by changing your privacy settings. To do this, select Start , then open Settings , and select Privacy & security . You'll see a list of general privacy options. There are links to specific privacy settings on the left of the page.