Tip: In Windows 7, you can synchronize your computer clock with an Internet time server to keep the computer clock up to date.To do this, select the date or time in the bottom right-hand corner of your screen, and then select Change date and time settings.Select the Internet Time tab, select Change settings, select Synchronize with an Internet time server, and then select Update now.

安装 Windows 11. 在针对你的特定电脑测试和验证 Windows 11 升级后，Windows 更新将指示它已准备好安装。 若要检查 Windows 11 是否已为你的设备准备就绪，请转到“开始” “设置” >“更新和安全性” >“Windows 更新” ，然后选择“检查更新”。 如果升级适用于你的设备，并且想要继续，请下载并安装它。

获取 Windows 操作系统的官方支持和帮助信息，以及如何使用 Windows 的指南。

Windows-Geräte erhalten möglicherweise zu unterschiedlichen Zeiten neue Funktionen, da Microsoft nicht sicherheitsrelevante Updates, Fehlerbehebungen, Verbesserungen und Verbesserungen über verschiedene Wartungstechnologien bereitstellt – einschließlich des kontrollierten Featurerollouts (Controlled Feature Rollout, CFR). Windows informiert Sie darüber, ob Sie Ihr Gerät neu starten ...

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但如果需要测试多个条件，例如我们假设所有条件都需要为 True 或 False (AND)，或只有一个条件需要为 True 或 False (OR)，或者如果想要检查某个条件是否不 (NOT) 符合你的条件，这时该怎么做呢？这三个函数均可以单独使用，但它们更常见于与 IF 函数成对使用。

Notes: You don't need a smartphone to receive a security code. Text messages may come from either "MSFT", a short number, or a mobile number.If you have requested a security code, you can trust the message that arrives.

Para obter suporte no Outlook.com, clique aqui ou selecione Ajuda na barra de menus e digite sua consulta. Se a autoajuda não resolver seu problema, role para baixo até Ainda precisa de ajuda? e selecione Sim.. Para entrar em contato conosco no Outlook.com, você precisará entrar.

Use the XLOOKUP function to find things in a table or range by row. For example, look up the price of an automotive part by the part number, or find an employee name based on their employee ID. With XLOOKUP, you can look in one column for a search term and return a result from the same row in another column, regardless of which side the return column is on.

Om du vill ha support i Outlook.com klickar du här eller välj Hjälp på menyraden och anger frågan. Om självhjälpen inte löser problemet rullar du ned till Behöver du fortfarande hjälp? och välj Ja.. Om du vill kontakta oss på Outlook.com måste du logga in. Om du inte kan logga in klickar du här.. Om du vill ha mer hjälp med ditt Microsoft-konto och prenumerationer går du till ...