Learn how to find, add, turn off, and remove extensions in Microsoft Edge browser. Extensions are tools that customize your browser experience and offer you more control.

Learn how to cast or mirror another device's screen to your Windows PC using Miracast. Follow the steps to install the Wireless Display app, connect to a wireless display, and add Cast to your quick settings.

Get help and learn how to use Microsoft products, such as Copilot, Microsoft 365, Windows, Surface, and more. Find articles, videos, training, and contact options for Microsoft support.

Phone Link lets you access your Android device's text messages, photos, apps, calls, and notifications on your Windows PC. Learn how to set up Phone Link with a QR code or manually, and what system requirements you need.

Learn how to get a refund for digital game products purchased from the Microsoft Store or Xbox apps within 14 days of the purchase date. Find out the eligibility criteria, guidelines, and resources for refund requests.

Free. 免费锁屏提醒表示活动Microsoft 365 家庭版或个人订阅不与登录帐户相关联。. 只有 Word、Excel 和 PowerPoint 的免费 Web 版本可供使用。 若要在浏览器中访问这些应用，只需使用 Microsoft 帐户登录到 Microsoft365.com，并从应用启动器 选择所需的应用。. 免费试用Word、Excel 和 PowerPoint

Learn how to download and install Microsoft 365 or Office 2021 on your device, whether you have a Microsoft account, a work or school account, or a product key. Find out how to activate the apps, troubleshoot issues, and get support.

Learn how to fix common problems with verification codes for Microsoft account sign-in. Find out how to use passwordless solutions, update security info, and get help from communities.

Learn how to activate Windows 11 using a digital license or a 25-character product key. Find out how to check your activation status, link your Microsoft account, and troubleshoot activation issues.

Learn how to enable virtualization on Windows 11 to run Android or Linux apps on your device. Follow the steps to access the UEFI (or BIOS) and turn on Virtual Machine Platform.