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

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:

Learn what you can do if you're not receiving account aign-in verification codes.

Learn how to install a scanner and use it to scan pictures and documents in Windows 10.

Add voting buttons to a message so that recipients can vote; results are tracked automatically in Outlook.

Summary. Microsoft Update Health Tools is offered to devices through Windows Update as update KB4023057. This update is applicable for both Windows consumer and commercial devices, with a slightly different purpose and functionality.

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 turn on device encryption, or standard BitLocker encryption in Windows.

Learn how to use antivirus protection in Windows Security to protect your Windows PC against malware, viruses, and other threats.