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Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

Windows devices may get new functionality at different times as Microsoft delivers non-security updates, fixes, improvements, and enhancements via several servicing technologies—including controlled feature rollout (CFR).. Windows will let you know if you need to restart your device to complete an update, and you can choose a time that works best for you to complete that update.

Learn how to run Windows Update Troubleshooter to resolve errors downloading or installing Windows updates.

既存の Windows 10 PC が現在のバージョンの Windows 10を実行し、Windows 11 を実行できる最小限のハードウェア仕様を満たしている場合は、アップグレードすることができます。 アップグレードの具体的なロールアウトのタイミングはデバイスによって異なり、特定のハードウェアが必要となる機能も ...

Windows Media Player is available for Windows-based devices. Use this table to find the right version of the Player for your system. (If you've got a Mac, you can download Windows Media Components for QuickTime to play Windows Media files.)

How to open the Camera app in Windows. To open up your webcam or camera, select the Start button, then select All apps, and then select Camera in the list of apps. If you have multiple cameras, you can switch between them by selecting Change Camera at the top right once the Camera app is opened.. Open Camera

Try these things to troubleshoot network connection issues in Windows 11. Make sure Wi-Fi is on. Select Start > Settings > Network & internet, then turn on Wi-Fi.Next, select More options (>) next to Wi-Fi, then select Show available networks.If a network you expect to see appears in the list, select it, then select Connect. Open Wi-Fi settings

The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.

Important: you should limit the number of administrators on your Windows device because administrators have complete control over the system.Administrators can change settings, install software, and access all files. If too many people have this level of access, it could lead to security risks like malware installation or unwanted changes to your system.