Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.

Locate your product key for Windows 10 or Windows 11. Depending on how you got your copy of Windows 10 or Windows 11, you'll need either a 25-character product key or a digital license to activate it.

Updates keep your Surface performing its best. Along with software updates for Windows 10 or Windows 11, it's important to make hardware updates, also known as updates for drivers and firmware. You can quickly check the health of your Surface drivers and firmware using the Surface app. Open the Surface app.

Remote Assistance Support from Microsoft allows a Microsoft support professional in another location to view your computer screen and work on your computer over a secured connection. Protect yourself from tech support scams. Before clicking 'I accept', review the: Agreement for Microsoft Services. Microsoft Software License Terms.

Activation helps verify that your copy of Windows is genuine and hasn’t been used on more devices than the Microsoft Software License Terms allow. There are three methods to which you can activate your product: Online via the internet, by telephone using our automated systems, and by a live support advocate.

註冊或取消註冊您的 Xbox 裝置. 當您註冊 Xbox 主機或配件後，您可要求並追蹤維修服務，並查看您的保固狀態。. 如果您不會再使用或不再擁有裝置，也可以取消註冊。. 如果您這麼做，裝置會自動從 Microsoft Store 取消連結，而遊戲和應用程式的未來下載將與它 ...

在将你的 Xbox 主机、Kinect 传感器或 Xbox 配件（如控制器）送修前，要确保将其妥善打包以便装运。本页介绍了推荐的产品包装方式。

If you receive a phone call claiming to be from Microsoft, or see a pop-up window on your PC with a fake warning message and a phone number to call and get your “issue” fixed, it’s better to be safe and not click any links or provide any personal information.

消费者客户：若要确定您适合以下两组单独许可条款中的哪一组，请查看产品标题。. 如果从实体零售店购买的产品，则标题打印在产品包装上；如果是联机获取的产品，则标题位于您购买软件所在的页面上。. 如果标题表明是 Microsoft 365 订阅（例如 Microsoft 365 ...

Get answers in the Microsoft 365 community forums. Sign in to Microsoft 365 admin center with your Microsoft 365 admin account, and select Support > Help and support, enter your question and select Contact support.