Note: The first time you set up the Microsoft Authenticator app, you might receive a prompt asking whether to allow the app to access your camera (iOS) or to allow the app to take pictures and record video (Android).You must select Allow so the authenticator app can access your camera to take a picture of the QR code in the next step.If you don't allow the camera, you can still set up the ...

Windows 11, version 23H2 ; July 25, 2024—KB5040527 (OS Builds 22621.3958 and 22631.3958) Preview; July 9, 2024—KB5040442 (OS Builds 22621.3880 and 22631.3880)

Get the latest critical and important updates.There are some updates you might need before you can install Windows 8.1. In most cases, the latest updates will be installed automatically using Windows Update.

从屏幕右边缘滑入，然后点击“搜索”。 如果你使用的是鼠标，请指向屏幕右下角，然后单击“搜索”。在 “搜索 ”框中键入“命令提示符”，右键单击“ 命令提示符”，然后单击“ 以管理员身份运行”。如果系统提示你输入管理员密码或进行确认，则键入密码或单击“允许”。

Add page numbers to an existing header or footer in Word. Use the Tab key to position the page number left, center, or right. If the number is flush left, press Tab once for center, and twice for right.

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。

Windows 10, version 21H2 update history; July 9, 2024—KB5040427 (OS Builds 19044.4651 and 19045.4651) June 11, 2024—KB5039211 (OS Builds 19044.4529 and 19045.4529)

Use random hardware addresses for a specific network: Select the Start button, then enter settings.Select Settings > Network & internet > Wi-Fi > Manage known networks.

Tip: If you've invited an external participant to be a guest speaker and you want to further limit their access to the meeting chat, you can schedule their presentation as the meeting's last session.The meeting organizer or moderator can then monitor the participant list during the meeting, and if the speaker joins outside their allocated time, they can manually remove them.

Turn off Ctrl+Click to follow a link. By default, Word and Outlook require you to press Ctrl when you click to follow a hyperlink. This extra step keeps you from accidentally going to a linked destination while you’re editing a document.