Learn how to troubleshoot Bluetooth problems in Windows. Resolve issues connecting a Bluetooth device or accessory.

Learn how to switch out of S mode to install apps from outside of the Microsoft Store or to upgrade to Windows 11.

开始之前 确保要安装 Windows 11 的设备满足最低系统要求。如果设备当前正在运行 Windows 10，建议使用电脑健康状况检查应用验证最低系统要求。 我们不建议在不符合要求的设备上安装 Windows 11。 有关详细信息，请参阅在不符合最低系统要求的电脑上安装 Windows 11。

If you’re having sound or audio problems, the following suggestions might help. The tips are listed in order, so start with the first one, see if that helps, and then continue to the next one if it doesn’t.

Try these solutions if you can't sign in to your Outlook.com, Hotmail, Live, or MSN email account, or you're not sure how to sign in or sign out.

Learn how to enable virtualization through the UEFI (or BIOS) of your PC to run the Windows Subsystem for Android or Windows Subsystem for Linux.

Learn how to connect a Bluetooth device in Windows and adjust Bluetooth pairing settings.

Training: Get started with SharePoint in Microsoft 365. At office.com, sign in to SharePoint, then select the SharePoint tile.

Get steps for how to change screen brightness in Windows.

警告: Windows 11 の最小システム要件 を満たしていないデバイスに Windows 11 をインストールすることは推奨されません。 これらの要件を満たしていないデバイスに Windows 11 をインストールすると、リスクを確認して理解 したこととみなされ、次のレジストリ キーの値を作成して、TPM 2.0 (少なく ...