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可以使用 简单的公式对) 一组单元格 (区域中的数字求和，但在处理多个数字时 ，sum 函数 更易于使用。 例如，=sum (a2：a6) 出现键入错误的可能性小于 =a2+a3+a4+a5+a6。 下面是使用两个单元格区域的公式： =sum (a2：a4，c2：c3) 对区域 a2：a4 和 c2：c3 中的数字求和。 可按 enter 获取总计 39787。

Important: If your device is out of support, it is no longer receiving security updates from Microsoft and may become more vulnerable to security risks and viruses.For this reason, we strongly recommend that you update to the latest version of Windows. Each version of Windows is supported for 18 months.

Узнайте, как изменить режим питания на компьютере Windows для сохранения заряда батареи, ограничения уведомлений и фоновых действий.

如果麦克风功能出现问题，则以下信息可以帮助你排除故障和解决问题。 确保应用有权访问麦克风. 如果在更新 Windows 10 后未检测到麦克风，则表示你可能需要先授予应用相关权限才能使用它。

Observação: Alguns aplicativos não podem ser desinstalados no aplicativo Configurações no momento.Para obter ajuda para desinstalar esses aplicativos, siga as instruções para desinstalar do Painel de Controle.

Microsoft generally releases the MSRT on a monthly cadence as part of Windows Update or as a standalone tool. (For exceptions, see Skipped releases.)Use this tool to find and remove specific prevalent threats and reverse the changes that they made (see Covered malware families).For comprehensive malware detection and removal, consider using Windows Defender Offline or Microsoft Safety Scanner.

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.

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В течение ограниченного времени после перехода на Windows 11 вы можете вернуться к предыдущей версии Windows, выбрав Пуск > Параметры > Система > Восстановление .Рядом с пунктом Вернуться нажмите Вернуться.