Find out how to stop your screen from flickering after the upgrade to Windows 10.

Learn how to install the latest version of DirectX to enable games and multimedia applications on your system.

After you have installed a new version of Excel, you may want to know how you can continue to work with workbooks that are created in an earlier version of Excel, how you can keep these workbooks accessible for users who do not have the current version of Excel installed, and how the differences between the versions affect the way that you work.

If you suspect that your device may have malware you should have Microsoft Defender run a scan. Here's how to do that on Windows, Mac, or Android.

Learn how to troubleshoot and fix problems setting up your email in Outlook.

Recover saved and unsaved documents. If the AutoRecover option is turned on, you can automatically save versions of your file while you’re working on it. How you recover something depends on when you saved it. If you’ve saved the file

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

提示: 如果你使用的是无线显示适配卡，请在较新的电视上连接到 HDMI 端口，然后通过无线方式将电脑与其连接。将无线显示适配器连接到电视后，请转到 Windows 11 电脑上，按 Windows 徽标键 + K 打开投放，然后选择无线显示适配器。

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

This article explains how to zip and unzip files.