How do I log on as an administrator? - Microsoft Support
Get a brief explanation about logging on as an administrator and making changes to other user accounts on your computer.
How to set up and test microphones in Windows - Microsoft Support
Get tips for how to set up and test microphones in Windows.
Install mobile apps and the Amazon Appstore on Windows
Learn how to use and install mobile apps on your Windows 11 PC with the Windows Subsystem for Android™.
Installing Microsoft Defender - Microsoft Support
Microsoft Defender is a new security app that helps protect you and your family across all your devices; Windows, Android, Mac, and iOS.
Applies To:
Microsoft Defender on Android, Microsoft Defender on iOS, Microsoft Defender on Mac, Microsoft Defender on Windows
View display settings in Windows - Microsoft Support
Learn how to use the Settings app to view and change display settings in Windows.
Switch to the new Microsoft Teams - Microsoft Support
In the new Teams, you can switch between apps, respond to chat messages, and join meetings and calls more quickly while using less battery and memory.
Applies To:
Microsoft Teams
Back up your Windows PC - Microsoft Support
Learn how to back up apps, settings, files, photos, and Microsoft Edge favorites and preferences on your Windows PC.
Shut down (turn off) your PC - Microsoft Support
Learn how to properly shut down your PC with step-by-step instructions from Microsoft Support.
在 Windows 中查找 BitLocker 恢复密钥 - Microsoft 支持
了解在 Windows 中查找 BitLocker 恢复密钥的不同方法，并了解如何在系统上激活 BitLocker。
Power efficient settings in Windows 11 - Microsoft Support
Updates to the default screen and sleep settings now help you use energy more efficiently and extend battery life. You can find efficiency settings in Windows 11 at Settings > System > Power & battery.. For a guided walkthrough of how each of the power and battery settings can improve your device's performance, click the button to open the Get Help app: