This page provides phone numbers of Microsoft customer service.

了解如何使用 PIN、面部识别或指纹通过 Windows Hello 登录电脑。

An icon is added to the right of your Address bar, letting you sign in and customize the extension. To change your My Apps portal using the extension

How to sort and organize your Excel data numerically, alphabetically, by priority or format, by date and time, and more.

新しい Microsoft アカウントを作成して Microsoft サービスを使用する方法について説明します。

Having trouble connecting to your email from Outlook on your desktop? Follow these steps to let Outlook diagnose and fix errors in your Outlook mail profile that might be causing the issue.

An overview of location permissions and your privacy in the Microsoft Edge web browser.

Learn how to activate Windows using an internet connection, automated system, or live support advocate.

Learn how to get Microsoft account help, troubleshoot sign in issues, keep your account secure, and manage your Microsoft account dashboard.

About digital signatures and certificates in Office, and buying a digital certificate from a certificate authority or create your own.