Learn how to manage extensions in Microsoft Edge, including adding, disabling, or removing them as needed.

Check the Xbox services, games, and apps for any service outages.

Learn how to access and manage your Windows sign in options. Use a password, Windows Hello, or a security key to unlock your device.

How to recall and/or replace an email message you sent by using Microsoft 365 and your built-in Exchange Server account.

Learn how to get ready for the Windows 11 upgrade, from making sure your device can run Windows 11 to backing up your files and installing Windows 11.

Hotmail 现在是 Outlook.com。 了解如何登录以访问 Outlook.com、Hotmail、Live 或 MSN 电子邮件帐户。

The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.

Learn how to download, install, and configure additional language packs for your version of Windows.

Install Office 2007. Insert your Office 2007 CD into the drive. If the setup wizard doesn’t start automatically, navigate to the CD drive and click SETUP.EXE.

Find your product key to activate Windows. A product key is a 25-character code that's used to activate Windows and helps verify that Windows hasn't been used on more PCs than the Microsoft Software License Terms allow.