I can't connect with my computer or iTunes

Hey am ganesh and i have apple ipod classic 120gb. Whenever i try to connect my ipod with my windows 8 computer, It says "OK TO DISCONNECT" within 10 seconds but yes am able charge it via charger but i can't connect with my computer or iTunes. So please help me!!!!!

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0