How to uninstall a metro style app in Windows 8
Windows 8 supports both standard and metro style views.
To uninstall a metro style app, follow these steps.
1. Find an app. You can either go the app direct or go to All Apps and find the app you would like to remove.
2. Right click on the app. You will see a check box in the top right column as you see on tweetPro image below.
3. You will see AppBar icons at the bottom of the screen One of them is Uninstall. See the second icon at the bottom.
4. Select Uninstall icon and you will see a confirmation message.