Learn how to change Microsoft account email address or phone number using aliases to sign into your Microsoft account.

Discover how to earn Microsoft Rewards points through various activities and redeem them for exciting rewards.

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。

Do you need some help installing Quick Assist? For the best experience, download and install the new version of the Quick Assist app from Microsoft Store. If you have problems installing Quick Assist, here are some steps to try to get it installed and working properly.

Find out how to connect your Xbox Wireless Controller to a Windows device.

Learn how to download Microsoft Support and Recovery Assistant to help fix problems with Microsoft 365, Office, or Outlook.

Learn how to manage your Microsoft devices. Add, remove, register, or rename a device on your Microsoft account.

Summary. Windows 10, versions 2004, 20H2, 21H1, 21H2, and 22H2 share a common core operating system with an identical set of system files. Therefore, the new features in Windows 10, version 22H2 are included in the latest monthly quality update for Windows 10, version 2004, 20H2, 21H1, and 21H2 but are in an inactive and dormant state.

Microsoft 365、POP、IMAP、または Microsoft Exchange ベースのメール アカウントを利用できるように Outlook を設定する方法について説明します。

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