communication problem with Window-8

WHEN I UPLOAD THE SKETCH NO Tx & Rx LED BLINK. ALSO ARDUINO IS NOT FOUND IN PORTS (COM & LPT ) SETTING

when i load the basic LED blink code to ATMEGA328-PU ERROR MESSAGE DISPLAYED AS:

Binary sketch size: 1,084 bytes (of a 30,720 byte maximum) avrdude: stk500_getsync(): not in sync: resp=0x00

I SHALL BE VERY THANKFUL IF ANY BODY HELP ME.