iTunes (store) doesn't work

Hi guys,

I have a problem:

three weeks ago, I downloaded iTunes on my notebook(sony vaio duo 11; windows 8.1; intel core i7; 4gb ram; ),

after the download I installed and opened iTunes.

Everything was Ok. But when I tryed to open iTunes Store the program said: "iTunes has stopped working".

I already tryed :

• I removed and reinstalled iTunes and all Apple components in the right order(Click here to see the order ), but no success.
• I already started the "program compatibility troubleshooter", but iTunes still doesn't work.

Please help me!!!!!!

Please reply!

Best regards

M.E.K