sorry for the late reply.i was super busy with my exams and i was out from the home for some time.So i am very happy to say that JV Powertools 2009 did it for me.
I ran a scan and found 10 errors and i fixed them using their tools.
Then i restarted the PC and now it loads very fast.(nearly about 30 secs).Also jetaudio has been recovered to the original state. I think JV Powertools has eliminated the unwanted registry files which effects the JetAudio and re-install it using correct setup.Its been some time i have used it and so far PC works super fine.No errors or application conflicts like other registry cleaners.Love it..!
I really thought to tell about it cause i know it will be helpful to someone who has the same problem as me.