Hotmail が Outlook.com になりました。 サインインして、Outlook.com、Hotmail、Live、または MSN メール アカウントにアクセスする方法について説明します。

Learn how to get Microsoft account help, troubleshoot sign in issues, keep your account secure, and manage your Microsoft account dashboard.

Learn how to run Windows Update Troubleshooter to resolve errors downloading or installing Windows updates.

Windows 11, version 23H2 ; July 25, 2024—KB5040527 (OS Builds 22621.3958 and 22631.3958) Preview; July 9, 2024—KB5040442 (OS Builds 22621.3880 and 22631.3880)

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Learn how to reset your PIN if you aren't signed in to Windows and having trouble using your PIN.

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

OneDrive is your online cloud storage within Microsoft 365. It lets you store your individual work files that you don't want your colleagues to have access to unless you choose to share the files with them.

Learn about the recovery options in Windows. Find out how to reset your PC, go back to a previous version of Windows, or use media to reinstall Windows.

Learn how to access and manage your Windows sign in options. Use a password, Windows Hello, or a security key to unlock your device.