heres what u do first go into control panel device manager and uninstall multimedia controller and pci input device then turn off your computer and the power supply unplug cord from computer and press and hold power button for about five seconds, open the left side of the case exposing the hard ware remove soundblaster live sound card by unscrewing it and unpluging the cable to it, after the card is removed take that cable and plug it directly into the motherboard its a white slot under the last pci slot about an inch long. but it all back together and power the machine, when the splash screen appears press f2 repeatly until it takes u to bios, once inside bios scroll down to intergrated devices enter and where it says sound select on by pressing eighter left or right arrow key press esc twice save and exit, your system will boot go to dell.com and download drivers for chipset and for intergrated sound and install walah! sound on windows 7!