Since you've posted in the Windows 7 forum, we can assume you are using Windows 7, but you haven't told us anything else about the computer. Make and model? Laptop or desktop? Age of the computer? What have you done to "try to get it back"? Which "1 of my things" is working? Do you have sound? The more information you give us, the better informed our answer will be.
In the meantime, try visiting the Realtek site and download and install the latest driver for your sound card. Check the Device Manager and see which driver is currently installed and see if there is an updated version for your computer.
Also, RIGHT click on the speaker icon in the lower right corner of your computer,, choose "Volume mixer, and make sure various items aren't muted. Also, RIGHT click, choose "Playback Devices" and when that opens, RIGHT click on a blank are of the window, make sure "show disabled devices" is CHECKED. If something's disabled, re-enable it.
Hope this helps and let us know more.
Grif
my realtek hd audio manager disapeared and now i cant get it back
only 1 of my things where you put speaker and headphone jack into works

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