Whether you like to apply changes that affect your photo's quality, feel, and look—or you want to add information on top of your photos, the Microsoft Photos app in Windows gives you all kinds of options for getting your photos and videos looking their best.

How to use the SUMIFS function in Excel, one of Excel’s math and trig functions, to add arguments that meet multiple criteria.

If your Outlook.com account has been blocked, follow the instructions in this article to unblock it.

Microsoft Support offers assistance for Microsoft products, including how-to articles, videos, and training for various software and devices.

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。

How to use the LOOKUP function in Excel to search in a single row or column and find a value from the same position in a second row or column.

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

The Feedback Hub app lets you tell Microsoft about any problems you run into while using Windows 11 or Windows 10. You can also send suggestions to help us improve your Windows experience.

Use date and time functions to create formulas that return serial numbers, display a specific date or time, or that calculate the difference between dates or times.

Learn how to use the privacy dashboard in your Microsoft account and manage your privacy settings for products you use.