HELP! I lost my sound?

Question

my computer's sound device for recording and playback was a device called REALTEK AV RACK.
I never could find a help function to learn how to use it properly, so I went to instal/uninstal programs to see if I could instal the help files. The stupid thing ended up uninstalling itself completly, so now I have NO sound device at all. I lost the CD. Anyone know a website where I can download a sound device for free for recording and playback? Thanks!!!

THANKS LONGHATS !!!
I suspected S.R. might fix my problem, but wasn't sure. Besides,I wanted to avoid using it because I've read horror stories on Yahoo Answers about S.R. Well, I did a restore, and it worked!! My erased sound controller is back. I'm impressed Windows actually has a function that works!!
Thanks again, 10 points for you.

Answer 1

Try a system restore to just before you deleted it. It should bring it back. Never delete programs if you don't know what they do. Many times the program is found in the Start/Programs files and typically there's an arrow that points to "uninstall help files". You wouldn't uninstall it from Programs on the Control Panel unless you wanted to uninstall the whole thing.

Start/Programs/Accessories/System Tools/Restore