1.) Head over to This site to see if the servers are up.

2.) If they are copy the hosts file that is presented under the server notification icon.

3.) Make a backup of original hosts file. 
(Delete the info from the original hosts file, MAKE A BACKUP)

4.) Copy the info from the host file that you got on the site into the hosts file located on your pc, save the file.

Connect your iPad/iPhone/iPod to your PC (via USB) and open iTunes. 
Step five: Wait for the message box with: iTunes can't verify the identity of the server "albert.apple.com" , then click "Continue".