了解如何使用产品密钥或数字许可证激活 Windows、检查激活状态，以及链接Microsoft 帐户。

Learn how to turn on device encryption, or standard BitLocker encryption in Windows.

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

Summary. Microsoft Update Health Tools is offered to devices through Windows Update as update KB4023057. This update is applicable for both Windows consumer and commercial devices, with a slightly different purpose and functionality.

Learn how to download, install, and configure additional language packs for your version of Windows.

Here's how to change the size of text, images, and apps in Windows. To change your display in Windows, select Start > Settings > Ease of Access > Display.To make only the text on your screen larger, adjust the slider under Make text bigger.To make everything larger, including images and apps, choose an option from the drop-down menu under Make everything bigger.

Learn how to install a scanner and use it to scan pictures and documents in Windows 10.

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

Learn how to use antivirus protection in Windows Security to protect your Windows PC against malware, viruses, and other threats.

Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Surface Laptop Studio 2