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Get started with eye control in Windows - Microsoft Support
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.
Windows location service and privacy - Microsoft Support
Location history. Some Windows apps and services that use location info also use your location history. When the location setting is on, locations looked up by apps or services will be stored on the device for a limited time (24 hours), then deleted.
Use @mentions to get someone's attention in Outlook for Windows
To capture someone's attention in an email or meeting invite, type the @ symbol followed by their name within the message or invite. Doing so will highlight their name and prompt Outlook to add them to the To line, ensuring they notice, and add the @ symbol next to their message in the Inbox.
Applies To: Outlook for Microsoft 365, Outlook 2021, Outlook 2019, New Outlook for Windows
What is Data Execution Prevention (DEP)? - Microsoft Support
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.
排查Windows 媒体播放器错误 - Microsoft 支持
如果遇到特定文件类型的错误,则可能是编解码器缺失或过时。 若要解决此问题,请执行以下操作: 检查文件属性: 确保电脑上有正确的编解码器来播放媒体文件。 若要检查文件格式和编解码器信息,请右键单击媒体文件,选择“属性”,然后转到“详细信息”选项卡。
Office Help & Training
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Microsoft Store & billing help
Explore Microsoft Store services From free shipping and returns to our 60-day price protection, we’re here to help you do more with best-in-class devices, software, games, and resources.
Optimizations for windowed games in Windows 11
Optimizations for windowed games improves gaming on your PC by using a new presentation model for DirectX 10 and DirectX 11 games that appear in a window or in a borderless window.
Résoudre les problèmes audio dans Windows - Support Microsoft
Si vous rencontrez des problèmes de son ou audio, les suggestions suivantes peuvent vous aider. Ces conseils sont affichés dans l’ordre. Commencez par le premier de la liste ; s’il ne vous permet pas de résoudre votre problème, passez au suivant.
Turn on app permissions for your microphone in Windows 10
Once you've allowed microphone access to your apps, you can change the settings for each app. In Microphone settings, go to Choose which Microsoft apps can access your microphone, and turn on apps you want to use with it.For desktop apps, make sure that Allow desktop apps to access your microphone is turned on.