Learn about what effect closing a Microsoft account might have on your other apps and services.

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

Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Surface Laptop Studio 2

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

请执行以下任一操作： 在 “翻译为 ”下拉列表中，选择要将页面翻译成的语言。 默认值是为Microsoft Edge设置的语言。

Windows 10 and 11 contain a large set of emojis. To insert one: Put your cursor where you want the emoji.

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.

Get help and support for Microsoft Edge. Find Microsoft Edge support content, how-to articles, tutorials, and more.

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

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.