An upgrade differs from an update in that it moves your PC from a previous version of Windows—such as Windows 10—to Windows 11. This FAQ is intended to answer questions about upgrading to Windows 11.

Send large files by using file sharing, cloud services, or other solutions for working around file size limits in Outlook.

Getting the most out of your PC backup. When you back up your files, apps, and settings in the cloud using your Microsoft account, you get 5 GB of free cloud storage and other benefits that protect your files with the latest security and make everyday tasks easier. Your Microsoft account ties everything together, no matter where you are or what ...

Learn how to download, install, and use the PC Health Check app to check your device's compatibility with Windows 11 and get tips to improve its performance.

The new Outlook for Windows brings the latest features, intelligent assisted capabilities and a new modern and simplified design to your Outlook app. You can tailor it to your style and do more with new Outlook for Windows!

如果你正在使用 Windows 电脑，并且想要在电脑设备上显示来自其他屏幕的应用程序和内容，则需考虑将设备屏幕镜像或投影到电脑。 请注意，需要支持 Miracast 的设备。 下面介绍如何将另一个屏幕或项目镜像到你的电脑。

Virtualization lets your PC emulate a different operating system, like Android™ or Linux. Enabling virtualization gives you access to a larger library of apps to use and install on your PC. If you upgraded from Windows 10 to Windows 11 on your PC, these steps will help you enable virtualization.

If that doesn't work, or your camera is built in on your device, try this: Select Start , type device manager, then select it from the search results. Find your camera under Cameras, Imaging devices , or Sound, video and game controllers. If you can't find your camera, select the Action menu, then select Scan for hardware changes.

Learn how to use and install mobile apps on your Windows 11 PC with the Windows Subsystem for Android™.

Learn how to run Windows Update Troubleshooter to resolve errors downloading or installing Windows updates.