Creating and using a USB recovery drive for Surface
Learn how to reset your Microsoft Surface and solve problems using a USB recovery drive or Surface recovery image.
Can my PC run Windows 11? - Microsoft Support
Your PC can run Windows 11 if it meets the minimum system requirements specified by Microsoft.
Recover lost or deleted favorites in Microsoft Edge
You can now restore lost or accidentally deleted favorites in Microsoft Edge with our new favorites recovery feature. You'll need to be signed in to your Microsoft account and have the sync setting turned on to use the favorites recovery feature.. To restore a lost or deleted favorite in Microsoft Edge:
Applies To:
Microsoft Edge
Install Office 2007 - Microsoft Support
Install Office 2007. Insert your Office 2007 CD into the drive. If the setup wizard doesn’t start automatically, navigate to the CD drive and click SETUP.EXE.
Applies To:
Office 2007
更改 Office 产品密钥 - Microsoft 支持
如何更改产品密钥以修复拥有并安装一次性购买的多个 Office 副本时可能会出现的激活问题。
Applies To:
OneNote for Microsoft 365, Visio Plan 2, OneNote for Microsoft 365 for Mac, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Professional 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Office 2021, OneNote 2021, Excel 2021 for Mac, OneNote 2021 for Mac, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Professional 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Office 2019, Excel 2019 for Mac, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Project Professional 2016, Project Standard 2016, Publisher 2016, Visio Professional 2016, Visio Standard 2016, Office 2016
Shut down (turn off) your PC - Microsoft Support
Learn how to properly shut down your PC with step-by-step instructions from Microsoft Support.
Find your Wi-Fi network password in Windows - Microsoft Support
Find your Wi-Fi network password in Windows, so you can connect to your Wi-Fi network on other devices.
在 Excel 中将 IF 与 AND、OR 和 NOT 函数配合使用 - Microsoft 支持
如何将 IF 函数 (与 Excel 中) AND、OR 和 NOT 函数结合使用，以在给定值之间进行逻辑比较。
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, Excel Web App, Excel for Windows Phone 10
Change or reset your PIN - Microsoft Support
Learn how to reset your PIN if you aren't signed in to Windows and having trouble using your PIN.
How to get support for Outlook.com - Microsoft Support
If you need help with Outlook.com, you can read our self-help content, or get support via email.
Applies To:
Outlook.com