When your camera isn't working in Windows 11, it might be missing drivers after a recent update. It's also possible that your antivirus program is blocking the camera, your privacy settings don't allow camera access for some apps, or there's a problem with the app you want to use.

获取 Microsoft Edge 的帮助和支持。 查找 Microsoft Edge 支持内容、操作方法文章、教程等。

RAND returns an evenly distributed random real number greater than or equal to 0 and less than 1. A new random real number is returned every time the worksheet is calculated.

Learn how to install Skype for Business on your Windows computer, mobile device, or Macintosh.

Questions and answers about artificial intelligence (AI), and how it's used in Microsoft products such as Microsoft Copilot.

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New to Xbox gaming on PC? Here's how to get started. Find out how to play with cloud gaming on devices you already have

Learn how to connect Windows Search with your accounts in the cloud, manage your Windows Search and SafeSearch settings, clear search history, and more.

Узнайте о параметрах восстановления в Windows. Узнайте, как вернуть компьютер в исходное состояние, вернуться к предыдущей версии Windows или переустановить Windows с носителя.

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