As title says , when i for example i can click say on any top free tile and it will let me in and then i can press the back onscreen arrow and that will work but after about 2 mins of being in the store if im in a top free tile again the screen will flash repeatedly then i cant do anything apart from press start button to get me back to desktop. Pressing to go back into store takes me back to the same page which it crashed on an nothing is selectable from and tile to the onscreen back key or clicking updates in top right .

i have done a windows 8 refresh and this did not fix the problem , it gave me another one as it wiped all my programs like anti virus , photoshop etc ....

any suggestions of fixes ??

win 8 pro 32 bit