打开或关闭 Windows 安全中心. Security Windows 10. 当在新设备中首次启动 Windows 10 时，设备上已安装的防病毒保护程序即是你的默认安全应用。. 但是，Windows 安全中心已预安装并可随时使用。. 如果你想要使用 Windows 安全中心，可卸载其他所有防病毒程序，Windows 安全 ...

Use desktops to keep different tasks organized or for different parts of your life, like work and home. To create a new desktop, select Task view > New desktop. To switch between desktops, select Task view . To change a background on a desktop, in Task view, right-click (or press and hold) on the desktop and select Choose background.

To do this: Select Start > Settings > Time & language > Language & region. Open Language settings. Go to Preferred languages, select Add a language. In Choose a language to install, enter and select the name of the language that you want to install, then select Next.

To open the video playback settings, select the Start button, then enter Settings. Select Settings > Apps > Video playback . If you're having issues with video playback, see Troubleshooting poor video playback . To learn about how can you save battery when playing video, along with other battery-saving tips, see Battery saving tips.

Add a new email account. Select Start , enter Mail, and choose the app from the results. If this is the first time you've opened the Mail app, you’ll see a Welcome page. Select Add account to get started. If you've used the Mail app before, at the bottom of the left navigation pane, select Settings , and then choose Manage Accounts.

Notes: If you're using the desktop version of PowerPoint on a Windows PC, see the PowerPoint Quick Start.. If you're using the desktop version of PowerPoint on a Mac, see Office for Mac Quick Start Guides and PowerPoint for Mac Help.

使用 Wi-Fi 或以太网连接时，可以使用代理服务器。. 在某些情况下，公司或组织可能需要代理服务器。. 若要使用代理服务器，需要以下一项或多项内容，具体取决于设置方式：. 自动 。. Windows 会自动检测代理服务器设置，因此无需输入任何信息。. 设置脚本 ...

Select Save or Save as to download the program. Most antivirus programs like Windows Defender will scan the program for viruses during download.

In Bluetooth & other devices settings, select Send or receive files via Bluetooth > Receive files. Have your friend send the files from their device. See Send files over Bluetooth. On your PC, on the Save the received file screen in Bluetooth File Transfer, select the location to save the files to, then select Finish. Open System settings.

在 Windows 中管理用户帐户. Windows 允许添加多个用户帐户以使用同一设备，使每个用户都有自己的设置、文档和应用程序。. 例如，家长可以拥有自己的具有管理权限的帐户来管理设置和安装软件，而孩子可以拥有启用了家长控制的标准帐户来监视和限制其使用 ...