Share a photo, video, or other kind of file with a friend who has a phone, laptop, or tablet. Make sure the other device you want to share with is paired with your PC, turned on, and ready to receive files.Learn how to pair

When your computer is connected to a projector and you start the slide show , Presenter View appears on your computer's screen, while only the slides appear on the projector screen.In Presenter view, you can see your notes as you present, while the audience sees only your slides.

Microsoft Authenticator is a free app that helps you sign in to all your accounts without using a password - just use a fingerprint, face recognition, or a PIN.

To activate Windows 10 using an internet connection: As Windows 10 will automatically activate if you are connected to the internet, you can confirm your activation status by selecting Start > Settings > Update & Security > Activation and looking under Windows.. If online activation fails, first try the activation troubleshooting in Activate Windows 10.

Learn how to access Microsoft Store on Windows by selecting the icon on the taskbar or using the search box.

Connect with friends, family, and coworkers in Teams. Stay organized and connected with friends, family, and coworkers all from one app. Get started

To increase security and performance, Windows 11 in S mode only runs apps from the Microsoft Store. If you want to install an app that isn't available in the Microsoft Store, or if you have Windows 10 Pro, Enterprise, or Education and want to upgrade to Windows 11, you'll need to permanently switch out of S mode.

Resolve Windows blue screen errors with tips and resources to do your own troubleshooting, or contact the Microsoft support if you need more help.

Learn how to enable live captions in Teams meetings and see real-time subtitles for what's said. Improve your accessibility and comprehension.

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。