Sound Won't Work Anymore

January 4, 2010 at 22:32:56
Specs: Windows Vista, Intel Dual Core, 2gigs of Ram
My roommates laptop all of a sudden stopped playing sound. I attempted to diagnose/fix the problem but obviously that failed since I am here. He is currently using IDT HD Audio for his sound driver. One night it just stopped working after a reboot. Under the device manager it displays it is still properly working of course, and I can still mess with IDTs settings under its sound manager. But when attempting to test the sound under speaker/headphone properties it pops up Failed to play Test Tone.

He took it to best buy's geek squad to see if they could fix it and they replied that the problem was that the firewalls are working against each other and that's why there is no sound. But the only firewall on his computer is the firewall/windows defender provided by vista. Since he said it was a software related issue it is not covered by warranty and my roommate will be forced to pay to get if fixed otherwise.

With this bit of knowledge I am attempting to fix it myself for him so he will not have to pay the $100 fee. I have already made sure the driver is completely up to date, and I even attempted to replace his sound with Realtek HD which itself seems to fail to install. I know what realtek HD is supposed to look like since I use it on my personal computer but when I install it on his it acts like it installs but after restart the only files added are a couple non executable files which do nothing for his computer. So i tried Realtek AC 97 which hangs on installation saying the driver is not recognizable and does a loop of that.

I really am stumped on this, the only information I am going on is from what geek squad told him, i figured if I could get realtek to work he might be able to have sound again but that seems to be just adding to the issues.

Does anyone have any suggestions to what I can do to attempt to fix his problem?

He currently has a dell laptop running with Vista Home Premium, 6.0.6001 Service Pack 1, IDT High Definition Audio.

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January 4, 2010 at 22:46:55
Vista Start > Search > CMD
Press Ctrl + Shift + Enter
Click Continue on the UAC message
Type CHKDSK /R then press enter key

NOTE: Answer Y if chkdsk asks you if you want to check the drive next time Vista boots (restarts)

Edit, sorry had to Edit my message, as I copied my post from here:

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