Article ID: 2770851 - View products that this article applies to.
You can't update or sync a Windows Phone 7 using Windows RT. This is because Windows RT doesn't run desktop apps, such as the Zune software, which is needed to sync or update a Windows Phone 7.
Windows RT only runs applications that are accessed from the Windows Store.
If you try to install the Zune software app, you will see the error:
This app can't run on your PC
To find apps for this PC open the Windows Store
Read the Windows RT disclaimer.
Windows Phone 7 requires the Zune software to sync content. This means you'll have to use a different version of Windows other than Windows RT (Windows 8, Windows 7, or Windows Vista for example). If you want to update your device, sync music, videos, or photos with your Windows Phone 7 you can only use the Zune software.
Here are some other ways to sync content, if you don’t currently have access to another version of a Windows PC:
To learn more about Zune installation details, go to Install the Zune software, on the Windows Phone 7 How-to websites.