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

注意: 如果你有多个一次性购买的 Office，并且安装 Office 后在激活时遇到问题，请参阅更改 Office 产品密钥。 如果你遵循软件许可条款中的转移条款，你可以将 Office 移动到另一台计算机，但是必须通过电话将其激活，然后从原来的计算机上卸载 Office。

在此示例中，单元格 D2 中的公式表示：IF(C2 = 1, then return Yes, otherwise return No)如你所见，IF 函数可用于计算文本和数值。它还可用于计算错误。 不仅可以检查一项内容是否等于另一项内容并返回单个结果，而且还可以根据需要使用数学运算符并执行其他计算。

Learn how to install the latest version of DirectX to enable games and multimedia applications on your system.

Click Save to save the console update.zip file to your computer.; Unzip the file by right-clicking on the file and selecting Extract all from the pop-up menu.

若要了解有关清除浏览器数据的详细信息，请查看和删除 Microsoft Edge 中的浏览器历史记录。 登录以在移动设备上同步帐户 在移动设备上设置同步. 下载适用于 iOS 和 Android 的 Microsoft Edge 应用。 输入你的手机号码，我们会将下载链接发送至你的手机。

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

Check the Xbox services, games, and apps for any service outages.

On the General tab, under Home page, enter the URL of the site you want to set as a homepage.You can add more than one URL. Or, to add the site you're currently viewing, select Use current.If you add more than one URL, put each URL on its own line.

If your printer isn't responding, you may need to remove it and reinstall it so Windows can download and install the proper drivers. Make sure your printer is on and connected to your PC.