This article describes how to change keyboard layouts in Windows 7 and earlier versions of Windows.

Keeping leading zeros and large numbers in Excel. Use a custom format to keep the leading zeros. If you want to resolve the issue just within the workbook because it's not used by other programs as a data source, you can use a custom or a special format to keep the leading zeros.

Answers to frequently asked questions about Microsoft Launcher. A launcher is to your Android phone as a desktop is to your computer—launchers provide the background interface on your phone and help you organize everything that you need quick and easy access to.

向任务添加限制以更改 Project 计算任务开始日期或结束日期的方式。 Project 提供可以影响开始日期的八种类型的任务限制。

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

Learn how to design professional-looking presentations with Microsoft 365. Create high quality, customized slides in a few clicks with PowerPoint Designer.

Get the latest info on new features for Microsoft Teams with these regularly updated release notes.

Get started with Microsoft Teams (free). Explore your options, find out what’s new, browse help topics, and more.

Save your Office file as a PDF without needing additional software or add-ins.

Data Execution Prevention (DEP) is a technology built into Windows that helps protect you from malicious code launching from areas of memory that have been designated as for data only.