Sign in with Microsoft
Sign in or create an account.
Hello,
Select a different account.
You have multiple accounts
Choose the account you want to sign in with.
Microsoft Edge 中的键盘快捷方式 - Microsoft 支持
键盘快捷方式是指按键或按键组合,可提供另一种方式来执行通常使用鼠标执行的操作。 下面是适用于 新版 Microsoft Edge 和 Microsoft Edge for Mac 的列表。
Windows 11 System Requirements - Microsoft Support
Learn about Windows 11 minimum system requirements and how to assess your upgrade eligibility.
How do I log on as an administrator? - Microsoft Support
Get a brief explanation about logging on as an administrator and making changes to other user accounts on your computer.
SUMIFS Function - support.office.com
We would like to show you a description here but the site won’t allow us.
Changes in the new Photos app on Windows 10 - Microsoft Support
The newly introduced Photos app on Windows 10 offers enhanced capabilities for managing and editing your photos. New features in the Photos app on Windows 10
SharePoint video training - Microsoft Support
Learn common SharePoint Online tasks with these videos and tutorials, and get links to more training for SharePoint and Office 365.
Applies To: SharePoint in Microsoft 365
打开或关闭 Microsoft Defender 防火墙 - Microsoft 支持
即使已开启其他防火墙,开启 Microsoft Defender 防火墙也很重要。 它保护你免遭未经授权的访问。 若要打开或关闭 Microsoft Defender 防火墙,请执行以下操作:
Open and find items in an Outlook Data File (.pst)
Describes how to investigate items in an Outlook Data File (.pst) and troubleshoot search issues.
Applies To: Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016
Find all your apps and programs - Microsoft Support
Learn more about how to find all your apps and programs in the all new Windows Start menu.
Restart (reboot) your PC - Microsoft Support
Select the Start button, then Power > Restart. By pressing submit, your feedback will be used to improve Microsoft products and services.