注意: 如果知道密码，但只想更改密码，请转到“account.microsoft.com 安全”选项卡，然后选择“更改我的密码”。. 如果知道用户名和密码但已停止工作，请阅读我的用户名和密码已停止工作。

Press and hold (or right-click) the MP4 file you want to play, select Open with, and then choose your preferred file player from the list of applications.

Use the Windows Quick Assist app to get help with a computer problem from family or friends or help them out. Quick Assist uses a remote connection, so remember to only use it with people you trust, since they can see your computer screen or control your PC (if you allow it).

Access, download, or run the Surface app and the Surface Diagnostic Toolkit to help find and solve Surface problems.

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 choose a Balanced power plan.

Step 1: Prepare Gmail for connecting to Outlook. Before you connect your Gmail account and Outlook, you need to prepare your Gmail account: turn on 2-step verification for Gmail and then create an app password that Outlook/Microsoft 365 will use with your Gmail address to make the connection.. Step 2: Add your Gmail account to Outlook

With Edge Chromium, you can add multiple profiles. Profiles allow multiple users to operate in a shared environment while maintaining access to their personalized browser settings, bookmarks, and extensions.

Select Close to acknowledge settings choices and go back to Device Manager.The webcam will now appear under the Cameras category in the Device Manager list.

可通过不同的方式删除应用和程序，因此如果找不到要查找的应用和程序，可以尝试另一个位置。 请注意，某些应用和程序内置于 Windows 中，无法卸载。

Lithium-ion batteries wear out over time, which can result in a battery not holding a charge for as long as it did when it was new. Keeping the battery charged to 100% all the time can cause it to deteriorate faster.