Check or change language settings - Microsoft Support
Microsoft's products and services work best if you use the same language and region across all your devices, and in all of your app and Store settings.
Applies To: Outlook.com, Microsoft Edge, OneDrive (home or personal)
Print a document in Word - Microsoft Support
If you want multiple copies of a printout, change the number of copies in the Print page: On Windows 7 or earlier, at the top of the Print page is a box labeled Copies with up and down arrows for you to choose how many copies of the document you want. Make your choice (either by entering a number or using the arrows), and then click Print.
Applies To: Word for Microsoft 365, Word for the web, Word 2021, Word 2019, Word 2016
April 9, 2024—KB5036893 (OS Builds 22621.3447 and 22631.3447)
Windows 11, version 23H2 ; July 25, 2024—KB5040527 (OS Builds 22621.3958 and 22631.3958) Preview; July 9, 2024—KB5040442 (OS Builds 22621.3880 and 22631.3880)
Product activation for Windows – online & support telephone numbers
To activate Windows 10 using an internet connection: As Windows 10 will automatically activate if you are connected to the internet, you can confirm your activation status by selecting Start > Settings > Update & Security > Activation and looking under Windows.. If online activation fails, first try the activation troubleshooting in Activate Windows 10.
Create a system restore point - Microsoft Support
In the search box on the taskbar, type Create a restore point, and select it from the list of results.
COUNTIF function - Microsoft Support
Argument name. Description. range (required). The group of cells you want to count. Range can contain numbers, arrays, a named range, or references that contain numbers. Blank and text values are ignored. Learn how to select ranges in a worksheet.. criteria (required). A number, expression, cell reference, or text string that determines which cells will be counted.
Applies To: Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016
Get a digital ID - Microsoft Support
A digital ID enables you to send digitally signed messages using Microsoft Outlook. A digital ID—also known as a digital certificate—helps prove your identity and helps prevent message tampering to protect the authenticity of an email message.
Applies To: Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Outlook 2013
Get started with Microsoft Teams - Microsoft Support
Learn how to use Microsoft Teams, a collaboration app built for hybrid work, to stay informed, organized, and connected.
Applies To: Microsoft Teams
Contact Us - Microsoft Support
Keep in touch and stay productive with Teams and Microsoft 365, even when you're working remotely. Learn more
在 Word 中打开 PDF - Microsoft 支持
了解在 Word 中打开 PDF 文件时,哪些部分将正确无误,而哪些部分将出问题,以及如何解决该问题。
Applies To: Word for Microsoft 365, Word 2021, Word 2019, Word 2016, Word 2013