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Protect yourself from phishing - Microsoft Support
First time, infrequent senders, or senders marked [External] - While it's not unusual to receive an email or Teams message from someone for the first time, especially if they are outside your organization, this can be a sign of phishing.Slow down and take extra care at these times. When you get an email or a Teams message from somebody you don't recognize, or that Outlook or Teams identifies ...
Excel help & learning
Find Microsoft Excel help and learning resources. Explore how-to articles, guides, training videos, and tips to efficiently use Excel.
Office Help & Training
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Deprecation of Microsoft Support Diagnostic Tool (MSDT) and MSDT ...
Devices running Windows 11 version 22H2 and older. If you're running Windows 11 version 22H2 and older, Windows 10, Windows 8.1, Windows 7 or any other earlier OS version, your device will not be affected by the MSDT Troubleshooter retirement.
Windows Update: FAQ - 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.
Microsoft 帐户安全信息和验证码 - Microsoft 支持
为什么需要验证码? 当你登录到你的 Microsoft 帐户时,我们可能会要求提供其他证明,证明确实是你的帐户。 最多可以添加 10 种不同的方法来验证登录,并且可以选择:
Applies To: Microsoft account dashboard
Office Help & Training
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Windows help and learning
Find help and how-to articles for Windows operating systems. Get support for Windows and learn about installation, updates, privacy, security and more.
在 Windows 上安装移动应用和Amazon Appstore - Microsoft 支持
若要在Windows 11电脑上使用移动应用,需要安装Amazon Appstore。 设置完成后,你将能够浏览和安装精选目录中的移动应用。
高级搜索选项 - Microsoft 支持
注意: 默认情况下,所有搜索都是 and 搜索。 必须将 not 和 or 运算符大写。 否则,必应将忽略它们作为停止字词,这些字词和数字是常见的单词和数字,为加快全文搜索速度而省略。