I will do my best to help you even though there is no specific area of support for your product.
Please provide the sound card brand and model number so we can assist you further.
Thank you for the mail. All I could get is:
Crystal Sound Fusion ™ CS4281 WDM Audio
Kindly note that I tried the latest driver for 64 bits of CS4281 also but no effect.
I see few websites provide drivers for Windows* operating systems released between 1995 and 2003; however, due to the age of this product I believe that the operating system you are now trying to use is not supported since the product reached the end of life status in 2006.
I tried these links too. It's a pity and poor marketing technique on the part of MS and its ilk to release such worthless products without backing them with drivers to satisfy their loyal customers! Further MS by introducing such new OS or applications has proved that its older products are better than the newer ones. Anyway I kicked the Win 8.1 and returned to the trusted XP Pro! Thanks a lot for the trouble and help.