About Windows 11 in S mode. Windows 11 in S mode is a version of Windows 11 that's streamlined for security and performance, while providing a familiar Windows experience.

Learn how to find and install digital downloads from Microsoft Store. See instructions to download and install software directly purchased from Microsoft.

Find help and how-to articles for Windows operating systems. Get support for Windows and learn about installation, updates, privacy, security and more.

Learn how to troubleshoot Windows activation errors. Browse common activation errors and learn what you can do to fix them.

Learn how to use a health report in Windows Security to manage your device performance and keep your device secure.

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。

Learn how to troubleshoot and use the clipboard in Windows to paste multiple items, pin items, and sync your clipboard to the cloud.

After launching an Office app, you might receive a message that says Get genuine Office.. If you see this, we've determined that the Office product installed on your device isn't legitimate and you may be a victim of software counterfeiting.

Use Find my device to locate and lock your lost or stolen Windows devices.

Discusses the release of the Malicious Software Removal Tool (MSRT) to help remove specific prevalent malicious software from Windows-based computers.