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.

如果你不希望第三方站点在你的电脑上存储 Cookie，则可以阻止 Cookie。 但是执行此操作可能会导致某些页面无法正确显示，或者可能会从站点收到一条消息，通知你需要允许 Cookie 才能查看该站点。

Why some files won't open in Internet Explorer. Internet Explorer uses add-ons such as Adobe Reader to view some files in the browser. If a file that needs an add-on won't open, you might have an older version of the add-on, which needs to be updated.

Voice typing. In Windows 11, dictation has been updated and renamed as voice typing. Like dictation, voice typing uses online speech recognition technologies to power its speech-to-text transcription service. You no longer need to turn on the Online Speech recognition setting to use voice typing.

Missed activity emails. In the Missed activity emails section, you’re able to set the frequency of summary emails detailing your missed activity, or turn this feature off.. Chats and channels notifications. Notifications for chats and channels can be managed at a granular level, allowing you to customize your notifications to your personal work style.

Find your family member and click Add money.. You can also click More options > Spending > Microsoft account balance > Add money.

New features added for recording video. The new Record window has two screens: Record and Export.. When you select Record, the Record screen opens by default.. If you select Export in the top right of the Record screen, the Export screen opens.. You can switch between the Record and Export screens using the Record and Export buttons in the top bar of the window.

如果遇到特定文件类型的错误，则可能是编解码器缺失或过时。 若要解决此问题，请执行以下操作： 检查文件属性： 确保电脑上有正确的编解码器来播放媒体文件。 若要检查文件格式和编解码器信息，请右键单击媒体文件，选择“属性”，然后转到“详细信息”选项卡。

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