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

Get the steps for how to transfer photos and videos from your portable devices to your PC.

Find your product key to activate Windows. A product key is a 25-character code that's used to activate Windows and helps verify that Windows hasn't been used on more PCs than the Microsoft Software License Terms allow.

Learn how the Photos app for Windows lets you view photos and videos from your PC alongside those from OneDrive, and keeps them organized by date, album, or folder.

Email messages that you receive can be saved as a file on your computer, or a message that you are composing can be saved as a draft and finished later.

Internet Explorer 11 support ended on June 15, 2022. If any site you visit needs Internet Explorer 11, you can open it with Internet Explorer mode in Microsoft Edge.

了解如何兑换礼品卡、代码或 Office 产品密钥，以及如何在 Microsoft Store 在线商店、Windows 或 Xbox 上花费余额。

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Learn how to sign into your PC with Windows Hello using a PIN, facial recognition, or fingerprint.

On your home router. Try these things first to help you fix or narrow down the connection problem. Check the Ethernet cable and connection.Make sure the Ethernet cable is securely plugged into the Ethernet port on both your router and Windows 11 PC.