If you already have an account signed in to OneDrive and you want to add or remove another account, you’ll do that in OneDrive Settings.

How to stop website notifications in Microsoft Edge. You can remove or block notifications for individual websites in the following ways: Remove or block notifications in Edge settings

Explore OneDrive support, help, and learning resources. Learn how to protect your important files, documents, and memories with OneDrive.

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 to locate and manage your app permissions on Windows devices. Some apps or games need specific permissions to work properly.

With Microsoft Edge, you can turn on sync to browse the web on all your devices, keep your favorites organized, and more.

了解如何使用产品密钥或数字许可证激活 Windows、检查激活状态，以及链接Microsoft 帐户。

Learn how to reinstall Windows on your PC and how activation works after it's installed.

Learn why it's important to have a backup, and how Windows Backup can help you keep your files and settings safe.

Learn how Smart charging in Windows can help your battery last longer over time.