Learn how to tell if your Office software is genuine. To help determine if your Microsoft software is genuine, go to our How to Tell site for more information. Here you'll learn about authentic packaging, including what to look for with product key labels, and Certificate of Authenticity (COA), how to report counterfeit software, and find out what your shopping and licensing options are.

Set up an eye tracking device. This guide helps you to set up and calibrate your eye tracking device for use with Windows eye control. We have tested it with the Tobii Eye Tracker 4C device; your experience with other devices might vary.

HDR content on Windows offers better brightness and color capabilities compared to traditional content (sometimes called standard dynamic range [SDR] content).

iPhone 说明：如果 iPhone 导入时遇到问题，请确保设备已解锁，并且已接受权限。 适用于 Android 和其他设备的注意事项： 如果你使用的是 Android 手机或其他设备，并且导入不起作用，则可能需要将手机的 USB 设置从“通过 USB 充电”更改为“传输文件”或“传输照片”。

Get more with Copilot Pro Gain priority access to GPT during peak times for accelerated performance to generate answers, content, and AI images even faster.

在 Windows 8.1 或 Windows RT 8.1 中查找操作系统信息. 要查找设备运行的 Windows 版本，请按 Windows 徽标键 键 + R，并在“打开”框中键入“winver”，然后选择“确定”。. 如果你的设备运行的是 Windows 8.1 或 Windows RT 8.1，那么有关详细信息，可以参阅以下内容：

Some accounts have been created using the current date instead of a birth date - it's surprisingly common, and we are working to prevent account creation errors.

Sign in using two-step verification or security info; Create app passwords in Security info (preview) Set up a phone call as your verification method

For higher fidelity when playing music for other participants in a Teams meeting, see Share sound from your computer in a Teams meeting or live event. Turn off noise suppression for high-fidelity microphones in a low-noise environment, such as a quiet studio.

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.