One of the newest features of Windows 8 is the Windows Store Apps by which you can download Metro apps and Desktop applications for Windows 8. You can also use the Windows Store to update Windows Store apps. But sometimes when you try to install or update apps from Windows Store the installation fails and you get an error "something happened and this app couldn't be installed.
Method 1 :
Go to the Control Panel and click on "Find and fix problems" under "System and security".
In this step click on "Fix problems with Windows Update".
The Windows Update window will be opened. click on "Next".
In this step click on "Try Troubleshooting as an Administrator".
Its will take a few seconds to find and fix the problem. After the problem is fixed click on "Close".
Now restart the system and try to update Windows Store apps.
Method 2 :
This One Works For Me :)
Download And Install Hotspot Shield.
launch HotSpot Shield, That's It.
You Can Use Either Free Or Paid Version Of HotSpot Shield.
Its Up To You Whether To Disable/Uninstall It After.