Glich while performing woth rekordbox DJ

I keep having theese clicks in songs and it makes an awful sound i m using a ddj rb laptop with i7 3gh 8gb ram 1tb. I tried increasing the buffer size to full but i keep having the issue and i recently reinstalled my windows and i put only rekordbox on it to see if it still has the prob and it s still there. I tried shutting off everything but rekordbox (wi fi/antivirus/etc.) but doesen t work. I have this from the beginning when i purchased the rb. I dunno what to do please help me.