Learn how to reset or change your Microsoft account password. Get help with a forgotten Microsoft account password.

[設定] の [Windows Update] ページにアクセスするための推奨オプションなど、Windows 11 をインストールする方法をご覧ください。

Learn how to troubleshoot problems updating Windows. Find answers to common questions and issues installing Windows updates.

If you need help with Outlook.com, you can read our self-help content, or get support via email.

Master the art of Excel formulas with our comprehensive guide. Learn how to perform calculations, manipulate cell contents, and test conditions with ease.

Learn how to install the Media Feature Pack for Windows 10/11 N editions (September 2022).

Learn how to open a shared mailbox in Outlook. Shared mailboxes let a group of users view and send email, and share a calender, and open a contact list from a common mailbox.

In the new Teams, you can switch between apps, respond to chat messages, and join meetings and calls more quickly while using less battery and memory.

Find answers to frequently asked questions about Office 2021 and Office LTSC for Windows and Mac on the official support page.

Learn how to download, install, and configure additional language packs for your version of Windows.