Compare the storage capacities of different Surface models and learn how to add more space for your files, apps, and games.

Describes how to troubleshoot performance issues in Microsoft Outlook.

Microsoft アカウントパスワードをリセットまたは変更する方法について説明します。 忘れた Microsoft アカウントのパスワードに関するヘルプを表示します。

This article describes step for users to allow all Web sites in the Internet zone to run JavaScript in Internet Explorer, Chrome, and Firefox.

If you forgot your work or school password, never got a password from your organization, or have been locked out of your account, you can use your security info and your mobile device to reset your work or school password.

Collections in Microsoft Edge helps you keep track of your ideas on the web, whether you're shopping, planning a trip, collecting notes for research or lesson plans, or just want to pick up where you left off the last time you were browsing the internet.

Learn how to unlock your Microsoft account and resolve 'account has been locked' error message.

If the file size of your presentation is too large, try the following tips to make it more manageable.

Click New chat to start a one-on-one chat and send messages in Microsoft Teams. To start a group chat, just add people to the conversation.

This page provides phone numbers of Microsoft customer service.