For technical support, go to Contact Microsoft Support, enter your problem and select Get Help. If you still need help, select Contact Support to be routed to the best support option. Learn how to change Microsoft account email address or phone number using aliases to sign into your Microsoft account.

Copilot is designed to deliver AI-powered assistance in a convenient manner, enabling you to seamlessly engage with generative AI on Windows. You can resize, move, and use Snap Assist with Copilot, just like you can with other Windows apps. You can use Alt + Tab to switch focus between Copilot and other open apps.

On the Microsoft Solitaire Collection page in Microsoft Store, select Install. The game will download and install automatically. To launch the game, select Play. You can always launch the game from the product page, but there's an easier way--pin it. With the game open, right-click (or press and hold) the game button on your task bar and select ...

To change the power mode, select Start > Settings > System > Power & battery. For Power mode, choose the one you want. Note: You might not be able to change the power mode when a custom power plan is selected. If you can’t set the power mode in Power & battery settings, open Control Panel, select System and Security > Power Options, then ...

了解如何使用游戏服务修复工具对电脑上游戏服务的安装和更新问题进行故障排除。注意 在某些情况下，你可能无法运行游戏服务修复工具，除非你在电脑上以本地管理员身份登录。 当 Windows OS 为 20H1 或更早版本时，会发生这种情况。 如果无法运行游戏服务修复工具，则需要更新 Windows OS 版本。

Select the Start button, then select Settings > System > Power & battery > Battery usage. For an app that lets you manage the background activity, select More options (three vertical dots) > Manage background activity. On the settings page for that app, change the setting for Let this app run in the background. Here’s a summary of each option:

The following tips can help you pinpoint the issue affecting your device. Before you begin, make sure your device is plugged into a power source and connected to the internet. Then, try the steps listed below to get your PC to update. Some updates require administrator access. If your account doesn't have administrator access, see Create a ...

First, launch Windows Backup: select Start , type windows backup, and select Windows Backup from the results. (Or you can select Start > All apps > Windows Backup .) Then select Folders to drop it down, and select which of your user folders you want to back up to OneDrive: You can back up your Desktop, Documents, Pictures, Videos, and Music ...

注意: 某些相机将不会显示在“相机设置”页中。其中包括用于 Windows Hello 人脸身份验证的红外线 (IR) 摄像头、使用 DirectShow 技术（如 DSLR 或运动相机制造商提供的便于将其设备用作网络摄像头的许多应用）的相机，以及不由 Windows 管理的专有相机，例如工业相机和许多网络摄像头。

Select the text for which you want to change the case. Go to Home > Change case . Do one of the following: To capitalize the first letter of a sentence and leave all other letters as lowercase, select Sentence case. To exclude capital letters from your text, select lowercase. To capitalize all of the letters, select UPPERCASE.