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

Learn how to uninstall Office from a PC using the Control Panel or with the uninstall support tool.

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。

After you create a drop-down list, you might want to add more items or delete items.In this article, we'll show you how to do that depending on how the list was created.

This article is for Outlook.com. If you're using Outlook for Windows, see Fixes or workarounds for recent issues in Outlook for Windows.. If you're having problems accessing Outlook.com, you can see the status of Microsoft Office Online Services at the Service Health portal.. If you're having problems sending or receiving email, read how to Fix Outlook.com email sync issues.

Learn how the Photos app for Windows lets you view photos and videos from your PC alongside those from OneDrive, and keeps them organized by date, album, or folder.

You can resolve problems with Microsoft Authenticator by checking the tips in this article and reviewing some of the known errors.

Learn how to install a scanner and use it to scan pictures and documents in Windows 10.

You can block messages from specific email addresses or domains from reaching your inbox. When you add an email address or domain to your blocked senders list, Outlook automatically moves messages from that sender to the Junk Email folder.

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