My iTunes could not connect to the iTunes Store. No matter what I did I could not get it to work, even after uninstalling and re-installing. I finally found a fix. In Windows, click Start and type “cmd” in the Run field. That opens a command windows. Type the following commands followed by hitting Enter:
netsh winsock reset catalog
netsh int ip reset reset.log hit
Reboot and you should be good to go!