I am fixing what was probably the most wrecked computer that has ever been seen on this forum (~500 pieces of malware, 52 independent trojans, and myriad viruses--lost count). I have completely cleaned the computer, and have it almost completely ship-shape. The only issue that I am currently having is with the sound. I have verified that the sound and external touch buttons are working by popping in and running Ubuntu. I have verified that both headphone jacks work (yes there are two specifically for headphones).
EDIT: computer is a HP dv6-1355dx, win7 home premium, 4 gigs of ram
What I see happening:
The touch sensor for the sound on the top of the laptop is red (off). The sound icon in the bottom left of the screen has a red X. When I left click on the red X the windows diagnostic window pops up. It offers to assist in troubleshooting two different options:
Speakers and Dual Headphones -IDT High Definition Audio CODEC
Independent Dual Headphones - IDT High Definition Audio CODEC
No matter which is checked, the troubleshooter completes and it states that the audio device(s) is/are disabled.
In device manager IDT High Definition Audio CODEC is shown under Sound, video and game controllers and is enabled. I have uninstalled this driver, restarted, re-installed, and restarted to no avail. Rollback is not an option.
In Playback (under sound) it shows that "Speakers and Dual Headphones (IDT HDA Codec device is default)" is enabled. It also shows that the Independent Dual Headphones using the same codec is the default communications device. Lastly under this is the SPDIF (Digital Out via HP Doc) and it is also using the same codec and is listed as ready. Now for all three of these items, if I try and modify them from the Sound panel, there are no changes. By this I mean if I try to disable, change the default device or set one to the default communication device.
In services, I have checked "Audio Service" (no dependencies) and "Windows Audio" (6 dependencies) and all main and dependent services are started, but still no sound.
I am wondering if there is an issue with the registry. Now, there are no recovery disks, no repair discs, no install discs, sound was working just two days ago within Windows. And to make matters just a tinsy-winsy bit worse, the windows key on the bottom of the laptop has worn off and no copy was ever made of the key. At this point I am really open to suggestions. I'd hate to have to give back a laptop that has been cleaned, but has no sound.
Windows had never been updated in the five years the computer was owned. The computer is now updated, but has a bit of issues with wanting to download some 32 bit updates (even though Windows update states they are 64bit), the KB file on the Windows website states that it is 32bit.
I have tried re-installing the IDT HDA CODEC that was initially released with the machine, and also attempted later iterations, but no avail.
Any help would be greatly appreciated.
Edited by hamluis, 08 February 2015 - 09:24 AM.
Moved from Win 7 to Internal Hardware - Hamluis.