Unable to initialize audio hardware/Xpress Pro 5.8

I was re-installing my 5.8 Xpress software today and while I tried to start it again I got the message "Unable to initialize audio hardware".
Since my computer was affected with virus. I had formatted my system entirely and while re-installing all the hardware's and Software's back to my PC i was facing this issue.
Till yesterday i didn't face such kind of error message.
Can anyone provide me with the solution for this problem?
