Windows keyboard tips and tricks - Microsoft Support
Learn new and useful keyboard features, tips, and tricks for Windows with this overview from Microsoft Support.
Calculate the difference between two dates - Microsoft Support
How to calculate the number of days, months, or years between two dates using the DATEIF function in Excel.
Applies To:
Excel for Microsoft 365, Excel 2021, Excel 2019, Excel 2016
View and delete browser history in Microsoft Edge
Learn how to view and delete your browser history and other history in Microsoft Edge.
在 Windows 中配对蓝牙设备 - Microsoft 支持
在开始之前，请确保你的 Windows 10 电脑支持蓝牙。 有关如何检查的详细信息，请参阅修复 Windows 10 中的蓝牙问题。 如果需要帮助添加没有蓝牙功能的设备，请参阅将设备添加到 Windows 10 电脑。 打开蓝牙. 检查你的 Windows 10 电脑是否支持蓝牙后，需要将其打开。
Introducing Microsoft Phone Link and Link to Windows
Your Phone is now Microsoft Phone Link! Learn more about our recent name change for our PC and Android mobile apps.
Pin apps and folders to the desktop or taskbar - Microsoft Support
In Windows 11, apps don't automatically get added to your desktop. Learn how to pin apps to your desktop or taskbar in Windows 11 or Windows 10.
Use the On-Screen Keyboard (OSK) to type - Microsoft Support
Learn how to use the On-Screen Keyboard (OSK) instead of a physical keyboard to type and enter text on your PC.
在 Microsoft 365 订阅之间切换 - Microsoft 支持
通过雇主的优惠购买时，将向现有订阅添加额外的时间，折扣费率将从现有订阅的年度续订日期开始。 请确保在购买过程中指定与当前 Microsoft 365 订阅关联的 Microsoft 帐户。
Applies To:
Microsoft 365 for home, Office.com
Product activation for Windows – online & support telephone numbers
Learn how to activate Windows using an internet connection, automated system, or live support advocate.
Open Device Manager - Microsoft Support
Explore subscription benefits, browse training courses, learn how to secure your device, and more.