Learn how to set up a connection to a proxy server on your Windows PC.

Discover how to earn Microsoft Rewards points through various activities and redeem them for exciting rewards.

Learn what file name extensions are, which extensions are common in Windows, and how to view them in File Explorer.

Learn how to design professional-looking presentations with Microsoft 365. Create high quality, customized slides in a few clicks with PowerPoint Designer.

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

Microsoft's products and services work best if you use the same language and region across all your devices, and in all of your app and Store settings.

There are some solutions you can try. First steps if your Surface Type Cover or Keyboard doesn't work. To try to resolve these issues, you can begin by following the steps below to get the latest updates, detach the Type cover or keyboard, force a restart, reattach the Type Cover or Keyboard, or confirm connectivity.. Get the latest updates

汇报默认屏幕和睡眠设置现在可帮助你更高效地使用能量并延长电池使用时间。 可以在 Windows 11 中找到效率设置 >系统 > 电源 & 电池。. 有关每个电源和电池设置如何提高设备性能的引导式演练，请单击按钮打开“获取帮助”应用：

Get answers to questions about how indexing affects searches in Windows 10.

Learn how to open and close Outlook Data Files (.pst) that contain copies, archives, or backups of your Outlook information.