Choose from a variety of Surface devices and accessories to get help.

Before you send an Outlook email message or share a Word document, Excel spreadsheet, PowerPoint presentation, or OneNote notebook, run the Accessibility Checker to make your content easier for people with disabilities to read and edit.

Smart App Control is a feature of Windows 11 that helps to block malicious, untrusted, or potentially unwanted apps from running on your device.

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.

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 get the latest Windows updates. Find answers to FAQ about updating Windows to keep your PC up to date.

要約. この更新プログラムは、実行中の PC 上の Windows Recovery Environment (WinRE) に安全な OS 動的更新プログラム を自動的に適用し、攻撃者が WinRE を使用して BitLocker 暗号化をバイパスできる可能性のあるセキュリティの脆弱性に対処します。 詳細については、「CVE-2024-20666」を参照してください。

The Xbox app on PC relies on two Microsoft accounts: the Microsoft Store account, and the Xbox account (your PC gaming account). The Microsoft Store account provides access to owned games, subscription benefits, and other Xbox app purchases made by that account. The Xbox account is used for game streaming access, in-game purchases, achievements, and friends.

To get someone's attention in a channel conversation or a chat, @mention them. Just type @ before their name and then select them from the menu that appears.

Explore subscription benefits, browse training courses, learn how to secure your device, and more.