Hi JKhair,
Thanks for visiting Apple Support Communities.
If your iPod is not turning on or being recognized by Windows, first try to reset it:
Press and hold the Sleep/Wake button and the Home button until the screen goes dark. The Apple logo should appear after a few seconds, then the Home screen should appear.
If the iPod is not working normally after you reset it, next try troubleshooting the usb connection using this article:
iPod not recognized in My Computer and in iTunes for Windows
http://support.apple.com/kb/TS1369
If your iPod is recognized by the computer, try to restore it using the steps in this article:
Restoring iPod to factory settings
http://support.apple.com/kb/ht1339
If your iPod is still not turning on or recognized by Windows, it may need service:
It's easy! Additional answers to common service questions can be found in the iPod Service FAQ.
From:
iPod troubleshooting basics and service FAQ
http://support.apple.com/kb/TS1382
Regards,
Jeremy