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Restrict access to documents with Information Rights Management in Word ...
Information Rights Management (IRM) helps you prevent sensitive information from being printed, forwarded, or copied by unauthorized people. The permissions are stored in the document where they are authenticated by an IRM server.
Applies To: Word for Microsoft 365, Word for Microsoft 365 for Mac, Word 2021, Word 2021 for Mac, Word 2019, Word 2019 for Mac, Word 2016, Word for iPad, Word for iPhone, Word for Android tablets, Word for Android phones
Contact Us - Microsoft Support
Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.
Office Help & Training
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Get started with eye control in Windows - Microsoft Support
Learn how to use eye control in Windows to type with an on-screen keyboard, communicate with people, and control the mouse with your eyes.
Product activation for Windows – online & support telephone numbers
Learn how to activate Windows using an internet connection, automated system, or live support advocate.
与我们联系 | Xbox Support
需要有关 Xbox 主机、Xbox 游戏或 Xbox 网络的帮助?了解如何与我们联系。
Surface won’t turn on or start - Microsoft Support
Learn what to do if Surface won’t turn on, turns on then off, or starts and gets stuck on a screen—a black screen, a screen with a logo, or another screen
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将 Windows 家庭版升级到 Windows 专业版 - Microsoft 支持
了解如何从 Windows 10 家庭版升级到 Windows 10 专业版或从 Windows 11 家庭版升级到 Windows 11 专业版,包括如何使用有效产品密钥或 Microsoft Store。
Office Help & Training
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