XLOOKUP function 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.

Learn how to reset or change your Microsoft account password. Get help with a forgotten Microsoft account password.

Learn how to delete and restore files in OneDrive. Recover deleted files or folders from the OneDrive recycle bin.

You can either use an email address you own as a Microsoft account, or create a new address by choosing "Get a new email address" or "Use your email instead" when you sign up. Microsoft email addresses are not reused, so even if an account was closed a long time ago, you cannot create a new account using the old email address. If you're creating an account for a child, a parent or guardian ...

虚拟化可让你的电脑模拟不同的操作系统，例如 Android™ 或 Linux。 通过启用虚拟化，你可以访问更大的应用库，以便在电脑上使用和安装。 如果你在电脑上从Windows 10升级到Windows 11，这些步骤将帮助你启用虚拟化。

Learn how to close your Microsoft account and understand the potential impact on other apps and services.

Summary This update automatically applies Safe OS Dynamic Update ( KB5034232) to the Windows Recovery Environment (WinRE) on a running PC to address a security vulnerability that could allow attackers to bypass BitLocker encryption by using WinRE. For more information, see CVE-2024-20666.

Learn how to install, reinstall, or activate Microsoft 365 or Office 2019 on a PC or Mac.

Learn how to troubleshoot problems updating Windows. Find answers to common questions and issues installing Windows updates.

Microsoft 提供一项定位服务，可帮助确定 Windows 设备的精确地理位置。 设备的精确位置允许应用为你提供路线、显示你附近的商店和餐馆等。