Use Find my device to locate and lock your lost or stolen Windows devices.

Windows 11, version 22H2; July 25, 2024—KB5040527 (OS Builds 22621.3958 and 22631.3958) Preview; July 9, 2024—KB5040442 (OS Builds 22621.3880 and 22631.3880)

Microsoft Support offers assistance for Microsoft products, including how-to articles, videos, and training for various software and devices.

Microsoft Rewards offers and redemption catalogs vary across regions. The following is a list of countries/regions in which Microsoft Rewards is currently available:

Updates to the default screen and sleep settings now help you use energy more efficiently and extend battery life. You can find efficiency settings in Windows 11 at Settings > System > Power & battery.. For a guided walkthrough of how each of the power and battery settings can improve your device's performance, click the button to open the Get Help app:

使用 Windows 设置应用更改桌面背景和颜色。

As you type inside the To, Cc, or Bcc boxes, Outlook suggests recipients. The Auto-Complete List can be turned off.

Improve security, evaluate and mitigate the risks of running macros, and see how to enable or disable macros for Microsoft 365.

Learn how to change the power mode on your Windows PC to preserve your battery, limit notifications, and background activity.

Get troubleshooting advice and see a list of options available for starting Windows in diagnostic modes such as safe mode.