Learn how to run a disk cleanup in Windows including deleting temporary and system files to free up disk space.

检查你的版本 DirectX 是许多 Windows 游戏都需要的一种多媒体技术套件。 如果你的电脑未安装正确版本的 DirectX（产品包装盒上应标有所需的版本），游戏可能无法正常运行。

Choose the power mode that works for you and what you want to do on your Windows 10 PC. This lets you determine what’s important to you—getting the best battery life, best performance, or a balance between the two. To change the power mode quickly, select the Battery icon on the taskbar, and then drag the slider to the power mode you want.

The new Microsoft Edge will delete your browsing history, cookies, and site data, as well as passwords, addresses, and form data when you close all InPrivate windows. You can open an InPrivate window in different ways: Select and hold (right-click) the Microsoft Edge logo in the taskbar and select New InPrivate window.

As you saw above, the DATEDIF function calculates the difference between a start date and an end date. However, instead of typing specific dates, you can also use the TODAY() function inside the formula. When you use the TODAY() function, Excel uses your computer's current date for the date.

Note: Some cameras won't appear in the Camera settings page.These include infrared (IR) cameras used for Windows Hello Face authentication, cameras using DirectShow technology (like many apps provided by DSLR or action camera manufacturers so their devices can be used as webcams), and proprietary cameras that aren't managed by Windows—such as industrial cameras and many networked cameras.

Erfahren Sie, wie Sie einen Windows-Product Key für die Aktivierung finden und wann Sie stattdessen eine digitale Lizenz verwenden.

This troubleshooter assists customers whose machines are not yet updated to the latest release, Windows 10 Version 1607. This update will initially be released only to a small set of targeted customers. This set will expand over time. Windows users can start the assistant from this article.

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)

To add another account, select your profile picture at the top right of the new Teams, then select Add another account. If your account is a Guest in another organization, it will appear automatically. To learn more, see Manage accounts and organizations in Microsoft Teams. Switch back to classic Teams