How to use the SUMIF function in Excel to add the values in a range that meet criteria that you specify.

Learn how to create an Xbox profile. You’ll need a Microsoft account to create an Xbox account. A Microsoft account is not the same thing as an Xbox account, although you can use the same email address for both.

Using Authenticator as a way to sign in. If you have turned on passwordless, two-step, or multi-factor authentication for your account, use the following steps to sign-in:

OneDrive は、一部の Windows のバージョンに組み込まれており、アンインストールすることができません。 ただし、同期処理を停止して、表示しないようにすることはできます。

If you are having trouble with your microphone features, the following information can help you troubleshoot and resolve issues.

If you already have an account signed in to OneDrive and you want to add or remove another account, you’ll do that in OneDrive Settings.

Get answers to some basic questions about what two-step verification is, and how to set it up and use it to help keep your Microsoft account more secure.

Learn how to troubleshoot Windows activation errors. Browse common activation errors and learn what you can do to fix them.

Contact groups, or distribution lists, are a fast way to send a message to multiple email recipients, especially groups you repeatedly contact.

Enter your current password, enter your new password, and then select Save.