Discover the latest features in Office 2021, including new ways to create content, manage data, and communicate effectively.

Learn how to change the refresh rate for your display in Windows to determine how smoothly motion appears on your screen.

Learn how to access and manage your Windows sign in options. Use a password, Windows Hello, or a security key to unlock your device.

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.

Learn how to use Remote Desktop in Windows. On your Windows, Android, or iOS device: Open the Remote Desktop app (available for free from Microsoft Store, Google Play, and the Mac App Store), and add the name of the PC that you want to connect to (from Step 1). Select the remote PC name that you added, and then wait for the connection to complete.

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

In Windows 11, apps don't automatically get added to your desktop. Learn how to pin apps to your desktop or taskbar in Windows 11 or Windows 10.

Install Office 2007. Insert your Office 2007 CD into the drive. If the setup wizard doesn’t start automatically, navigate to the CD drive and click SETUP.EXE.

Learn how to access Windows device security settings in Windows Security to help protect your device from malicious software.