Windows 11 Windows 10. 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.

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.

将两个数组的所有组件相乘 (A2：B4 和 D2：E4) ，然后添加产品 -即 3*2 + 4*7 + 8*6 + 6*7 + 1*5 + 9*3 (156) 。 为获得更完整的体验，您也可以在 Excel 中打开此工作簿。 只需单击工作簿右下角的 Excel 图标 ，将文件保存到计算机的方便位置，然后打开它。 返回页首

プログラムのインストールとアンインストールのトラブルシューティング ツールを使用すると、プログラムのインストールや削除がブロックされている場合に、問題を自動的に修復できます。. また、破損したレジストリ キーも修正されます。. まず ...

When you enable an add-in, it adds custom commands and new features to Microsoft 365 programs that help increase your productivity. Because add-ins can be used by attackers to do harm to your computer, you can use add-in security settings to help protect yourself.

Xbox Support offers help for Xbox, Game Pass, and billing questions. Get advice and customer service in the Xbox Support community.

在 Android 设备上安装 Authenticator. Google Play 商店在中国不可用，因此只能从以下商店下载 Microsoft Authenticator：. 百度. 联想. 华为. 三星. 注意: 我们会尽量使所有应用商店版本保持最新状态，但 Microsoft 不对其他站点上提供的版本负责。.

Windows 10. Windows 8. Windows 7, Windows Vista, or Windows XP. To view the certificate in the Personal Certificates store, do the following: Open Internet Explorer. On the Tools menu, click Internet Options, and then click the Content tab. Click Certificates, and then click the Personal tab. Important: If you digitally sign a document by using ...

Sign in to Outlook on the web with your work or school account. Go to outlook.office.com. If you're not automatically signed in with your work or school account, follow the prompts to enter the email address and password for your work or school account. Follow any two-factor authentication prompts you may have previously set up for this account.

更改页码的显示位置. 在页眉或页脚区域中，选择页码。. 使用 Tab 键将页码左对齐、居中或右对齐。. 如果数字左对齐，请按一次 Tab 键将居中，按两次将右对齐。. 若要返回，请按退格键直到返回到所需位置。.