How to solve the problem of cannot acess system sounds on windows 7

[titititi]

i installed an alien theme by windows sev7n on my alienware 15x home premium 7 and after that when i restarted my lappy it showed warning cannot access sound system...i checked the personaliasation then clicked sounds i found a default sound theme writtten in some chinese order...whats the cause of the problem and the solution too...cannot use any theme after that error. help

 

[soundguruman]

Delete the current audio driver
Visit the computer manufacturer website and download the latest audio driver
install it while the antivirus is turned off, restart and turn the security back on.
double click the speaker icon in the lower right hand of the desktop to access the audio controls...