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Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.
Protect yourself from phishing | Microsoft Support
Phishing (pronounced: fishing) is an attack that attempts to steal your money, or your identity, by getting you to reveal personal information -- such as credit card numbers, bank information, or passwords -- on websites that pretend to be legitimate. Cybercriminals typically pretend to be reputable companies, friends, or acquaintances in a fake message, which contains a link to a phishing ...
Benefits with Xbox Game Pass
Learn about the exclusive in-game content, special offers, and partner perks available with Xbox Game Pass Ultimate, Premium, Essential, and PC Game Pass subscriptions.
Download Microsoft Authenticator | Microsoft Support
The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.
How to spot a "fake order" scam | Microsoft Support
A popular tactic of criminals is the "fake order" scam. The way it works is that you get a message, usually in email or text, that appears to be a routine confirmation for an order. Of course, you never ordered whatever product or service it's confirming. The message looks common enough, and it says that money will be charged to your credit card or withdrawn from your bank account for the ...
Windows 驱动程序策略 | Microsoft Support
Windows 包含一项名为 内核代码完整性 的安全功能,它通过确保系统上加载的内核驱动程序以完整性运行,并由Microsoft信任的颁发机构以加密方式签名,从而帮助保护系统。 如果看到此消息,则表示驱动程序或内核模式软件未正确签名或不符合 Windows 内核代码完整性签名要求。 Windows 要求通过 Windows ...
View protected files with Microsoft Purview Information Protection ...
View protected files in Windows using the Microsoft Purview Information Protection viewer If you are trying to open a protected file in Windows and it does not open properly, then you will likely need to use the Microsoft Purview Information Protection viewer for the desktop. The information protection viewer supports the following file types and environments.
Digital signatures and certificates | Microsoft Support
More and more people and organizations are using digital documents instead of paper documents to conduct day-to-day transactions. By reducing dependency on paper documents, we are protecting the environment and saving the planet’s resources. Digital signatures support this change by providing assurances about the validity and authenticity of a digital document. For more information, see Add ...
Applies To: Excel for Microsoft 365, Word for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, Excel 2024, PowerPoint 2024, Access 2024, Excel 2021, Word 2021, PowerPoint 2021, Access 2021, Visio Professional 2021, Visio Standard 2021, Excel 2019, Word 2019, PowerPoint 2019, Access 2019, Visio Professional 2019, Visio Standard 2019, Excel 2016, Word 2016, PowerPoint 2016, Access 2016, Visio Professional 2016, Visio Standard 2016
如何在 Outlook 中添加和更改电子邮件签名 | Microsoft Support
摘要 Email签名在业务通信中创造专业一致性,并确保收件人在每封邮件中都有你的联系信息。 在 Outlook 中,可以设置多个签名以用于不同目的 (内部与外部、个人与企业) ,并选择是自动将其包含在新电子邮件、答复还是转发中。 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 2024, Outlook 2021, Office 365 Small Business, Outlook.com, New Outlook for Windows, Outlook on the web for Exchange Server 2016, Outlook on the web for Exchange Server 2019
View digital signature and certificate details | Microsoft Support
See how to view the details for signatures and certificates.
Applies To: Excel for Microsoft 365, Word for Microsoft 365, PowerPoint for Microsoft 365, Excel 2024, PowerPoint 2024, Excel 2021, Word 2021, PowerPoint 2021