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

Windows Update can help fix problems with your PC. Fix problems using Windows Update is a recovery tool that can help resolve issues related to updates. Using this tool will reinstall the current version of Windows on your device.

忘れた場合や紛失した場合に Windows パスワードを変更またはリセットする方法について説明します。

You can insert a drop-down list of valid entries (also called a drop-down menu or drop-down box) in Excel to make data entry easier, or to limit entries to certain items that you define.

We’re continually releasing updates to our application, based on customer feedback. Check out What's New in the latest updates for Skype on desktop and mobile.

Find out how to use Game Bar to capture game play, chat with friends, track achievements, and more.

Get an overview of SharePoint. Learn about sites, lists and libraries, permissions, content types and workflows. In addition, read about some of the social features in SharePoint.

Compose a message now, but schedule it to be sent later.

Email messages that you receive can be saved as a file on your computer, or a message that you are composing can be saved as a draft and finished later.

Find out how straight-forward it is to schedule remote meetings in Microsoft Teams for both people inside and outside of your organization.