Find your Office product key - Microsoft Support
Learn how to locate your Microsoft Office product key, which allows you to activate and use your Office products without requiring a Microsoft account.
Create an ISO file for Windows 10 - Microsoft Support
Create an ISO file for Windows 10. Unlike in previous versions of Windows, you’ll need to use the media creation tool to create an ISO file to install Windows 10.
End of support for Cortana - Microsoft Support
Explore subscription benefits, browse training courses, learn how to secure your device, and more.
Office Help & Training
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Enable and Configure Versioning for a List or Library
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修复 Windows 中的声音或音频问题 - Microsoft 支持
如果你有多个要插入的 5 毫米插孔(尤其是在环绕音响系统上),请确保所有电线和线缆都插入到了正确的插孔中。
Office Help & Training
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Insert a signature - Microsoft Support
How to add a signature to your Word documents. You can also use the Signature Line command in Word to insert a line to show where to sign a document.
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
Office Help & Training
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Insert a multiple-selection list box - Microsoft Support
A multiple-selection list box is list of choices that looks like a scrollable list of check boxes instead of a typical list box. Users can select as many check boxes as necessary from the list.
Applies To: InfoPath 2010, InfoPath 2013