Learn how you can use the free Microsoft Authenticator app to sign in to all your accounts without using a password.

Learn how to use Microsoft Edge for mobile devices, sync your browser data, and get answers to common questions.

如果您收到表示嘗試購買 Xbox 訂閱的付款遭拒的通知，或是在嘗試使用 Xbox 訂閱時看到下列錯誤訊息：

Find out how to change your Xbox gamertag through a browser, on your Xbox console, or your Windows device.

Since the message will be out of sight in your Sent Items folder, we recommend you add a reminder for yourself. Reminders are alert dialog boxes that appear when follow up is due, just like the ones you see for upcoming meetings or appointments.

Create and edit a flow chart using a variety of layouts and options.

Describes how to troubleshoot problems that occur when you install, uninstall, or upgrade a program on a Windows-based computer by using Windows Installer.

Training: In Outlook, you can add a flag, set a reminder for a flagged email, and assign a color category to an email message to organize your inbox. Watch this video to learn how.

Learn how to troubleshoot Windows Media Player errors. Explore resources for general help with Windows Media Player.

Microsoft is dedicated in making Microsoft Edge the best browser for shopping with features like coupons, price comparison, price history, ratings, reviews, and more.