@Kadafi
err, @arubislander asked you to download, while you clicked on 'install'. That's not the same thing and clicking to download allows precisely to test if the mere act of downloading is blocked or if the downloading works fine but UT crashes while installing.
Once the file is downloaded (a file with extension of '.click') it's possible to install it by navigating to the folder and selecting it. UT asks you then to open with the store. This separates the 2 operations that the standard store installer bundles into one (for convenience, but it makes debugging more difficult).