Windows Selection Disappeared after encountering a problem, please help!

Was Running Windows 7 through Boot Camp Normally, doing nothing special just on FaceBook through Google Chrome when all of a sudden the screen went black with a Blue square saying that "Windows has Encountered a Problem and is Shutting Down." Let it Shut down and had it Reboot to run through the MAC portion, after a while I restarted the System and did what was needed holding onto the ALT OPTION button but the Windows HD Icon was no Longer there. Checked the disk Utility Windows name wasnt there Instead was Called DISK02 tried to repair it but was not found. Mac is still partitioned but not able to get to Windows portion at all what to do please Help!!

Thanks