Windows 10. To turn off your PC in Windows 10, select the Start button, select the Power button, and then select Shut down.

Contact Support. For technical support, go to Contact Microsoft Support, enter your problem and select Get Help. If you still need help, select Contact Support to be routed to the best support option. Check the recent sign-in activity for your Microsoft account if you get an email about unusual activity.

视频：访问 Surface 上的 UEFI 设置. 注意: 该视频仅提供英文版。. 只能在系统启动期间调整 UEFI 设置。. 如何加载 UEFI 固件设置菜单：. 关闭 Surface。. 长按 Surface 上的调高音量按钮，同时按下并松开电源按钮。. 当显示 Surface 徽标时，松开调高音量按钮。. UEFI 菜单 ...

Here’s how: Check in quick settings: Select the Network, Sound, or Battery icons ( ) on the right side of the taskbar, look for the Bluetooth quick setting, then select Bluetooth to turn it on. You’ll see “Not connected” if your Windows 11 device isn’t connected to any Bluetooth accessories. Check in Settings: Select Start > Settings ...

To apply this update, you must have .NET Framework 3.5 or 4.8.1 installed. Restart requirement. You must restart the computer after you apply this update if any affected files are being used. We recommend that you exit all .NET Framework-based applications before you apply this update. How to obtain help and support for this update ...

我的 QR 码不匹配，并且无法链接我的手机 出于安全原因，如果尝试失败次数超过 3 次仍无法匹配电脑和荣耀、三星或 OPPO 设备上的代码，则会自动阻止连接你的设备。 关闭并重新打开“手机连接”，然后改为从这里开始设置过程。

Getting the most out of your PC backup. When you back up your files, apps, and settings in the cloud using your Microsoft account, you get 5 GB of free cloud storage and other benefits that protect your files with the latest security and make everyday tasks easier. Your Microsoft account ties everything together, no matter where you are or what ...

Windows 用のインストール メディアを作成する. Windows 10 Windows 8.1 Windows 7. インストール メディア (USB フラッシュ ドライブまたは DVD) を使用すると、Windows の新しいコピーのインストール、クリーン インストール、Windows の再インストールを行うことができます ...

Find your Office product key. Office 365 Office 2019 Office 2016 Office 2013. Many tasks for Office products don't require a product key because your Microsoft account takes care of them instead. Using product keys with Office.

Select Install apps. Follow the instructions in the browser to download the installer and start your installation. Tip. As your apps are installing you might see the User Account Control prompt pop up and ask Do you want to allow this app to make changes to your device? Select Yes. Close the installer window after it's finished.