Welcome to Sticky Notes! We're still the best way to write quick notes on your Windows desktop, but now you can also take your sticky notes with you, allowing you to capture, find, and use your notes across apps and your favorite devices.

使用 vlookup、hlookup 和其他函数（如 index 和 match）根据您输入的值搜索和查找数据。 本文将让您快速回顾 vlookup，然后链接到更多内容。

了解在 Windows 中查找 BitLocker 恢复密钥的不同方法，并了解如何在系统上激活 BitLocker。

Get help with signing in, changing passwords, creating and sending mail, deleting mail, creating folders, and more in Outlook on the web.

A Microsoft account is a personal account required for access to Microsoft’s products and services.

To see where your browser is saving downloads, look in your browser's settings. For example, in the new Microsoft Edge , select Settings and more > Settings > Downloads .The file path for your downloaded files (for example, C:\Users\[your name]\Downloads) is listed under Location.. In Microsoft Edge Legacy , select Settings and more > Settings .

The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs.

Learn how to open and close Outlook Data Files (.pst) that contain copies, archives, or backups of your Outlook information.

Find out how to change the color of the Start menu, taskbar, and action center with dark and custom mode personalization settings.

Explore subscription benefits, browse training courses, learn how to secure your device, and more.