Iím using SONY VAIO PCV- RX403N from 1 year. Due to viruses and bugs my computer performance slows down. So I have booted my computer and install window 7. But this time my audio driver is not working in window 7 after installing also. So I try downloading new audio driver for my SONY VAIO PCV- RX403N from internet. But I didnít get solution. So friend anyone knows the solution for this problem can share here.