Optimizations for windowed games improves gaming on your PC by using a new presentation model for DirectX 10 and DirectX 11 games that appear in a window or in a borderless window.

Function name. Type and description. ABS function. Math and trigonometry: Returns the absolute value of a number ACCRINT function. Financial: Returns the accrued interest for a security that pays periodic interest ACCRINTM function. Financial: Returns the accrued interest for a security that pays interest at maturity ACOS function. Math and trigonometry: Returns the arccosine of a number

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Important: Copilot in Excel and Planner only supports Chinese (Simplified), English, French, German, Italian, Japanese, Portuguese (Brazil), and Spanish at this time.

Need help with an Xbox console, an Xbox game or Xbox network? Find out how to get in touch with us.

When you start a focus session, a focus timer will appear on screen. To use additional focus tools in the Clock app, expand the focus timer to get the full view of the Clock app.

Learn how to use voice access for accessibility. This page includes accessibility help articles for people who use Windows voice access to control their PC and author text using their voice.

若要将其关闭，请将设置切换为“关闭”。 关闭 Microsoft Defender 防火墙可能会使设备（以及网络，如果有）更容易受到未经授权的访问。

In a test call, you'll see how your mic, speaker, and camera are working. Follow the instructions from Test Call Bot and record a short message. The message will playback for you. After that, you'll get a summary of the test call, and you can go to your device settings to make changes.

To change your capture settings, press the Start button , and then select Settings > Gaming > Captures.The following sections cover the capture settings you can adjust.