Learn what to do when you see a warning message that your device does not meet Windows 11 minimum system requirements to upgrade.

Learn how to change the power mode on your Windows PC to preserve your battery, limit notifications, and background activity.

Get answers to common questions about Windows 11 and Windows 10 in S mode.

Windows Security is pre-installed on Windows 10 and ready for you to use at any time.

Outlook.com、Hotmail、Live、または MSN のメール アカウントにサインインできない場合、サインインまたはサインアウトする方法がわからない場合は、次の解決方法を試してみてください。

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

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

Learn more about how to print web pages and documents in Microsoft Edge.

The Microsoft Teams web app works for most desktop browsers, including Chrome, Firefox, and Internet Explorer.

Explore OneDrive support, help, and learning resources. Learn how to protect your important files, documents, and memories with OneDrive.