Prova de här lösningarna om du inte kan logga in på ditt Outlook.com-, Hotmail-, Live- eller MSN-e-postkonto, eller om du inte vet hur du loggar in eller loggar ut.

Learn how to manage and set device screen time limits on Windows, Xbox, and mobile devices connected through the Microsoft Family Safety app.

Learn about what effect closing a Microsoft account might have on your other apps and services.

Improve security, evaluate and mitigate the risks of running macros, and see how to enable or disable macros for Microsoft 365.

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此疑难解答将为计算机尚未更新至最新版本 Windows 10 版本 1607 的客户提供协助。 此更新最初只会发布给一小组有针对性的客户。 这些客户会随着时间的推移而扩展。 Windows 用户可以从本文启动助手。

Learn how to pin an app to the taskbar from the Start menu or apps list by right-clicking and selecting the "Pin to taskbar" option.

About digital signatures and certificates in Office, and buying a digital certificate from a certificate authority or create your own.

Use the XLOOKUP function when you need to find things in a table or a 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.

Learn how to show hidden files, folders, and drives in Windows.