I have a hp pavilion dv7 with windows vista operating system. Recently it went to a black screen. I could not get desktop to come up and I could not get it to turn off. So I unplugged it and pulled out battery. Then I replaced the battery and plugged it in and it began working properly except, now my sound is all distorted and has static. This sound problem has happened before and I have always been able to fix it by uninstalling the sound and then when windows reinstalls it, it is fixed. I tried this trick this time and it is not fixing it. Do you have any suggestions?
111D and 76B2
We tried A and it did not work. We are unwilling to try B. Thanks for your attempt to fix the problem. We will try another expert.
Last restore was over 5 years ago, not willing to lose all the information since then on a system restore. Same problem when headphone is connected. Sound bad regardless of what is playing. Even the little chime that rings when Windows page comes up is distorted. Would battery have anything to do with it? My battery is completely gone.Computer only works when plugged in..
If the battery is still connected then you can try to turn off the system, disconnect battery, make sure ac adapter is connected and then turn it on. If it remain same and if you notice the same problem with a headphone connected, then next we can try to run system file checker which basically looks for corrupt system files and performs repair as required.A Click Windows icon (Start) -> All Programs-> Accessories. Right click on Command Prompt, select Run As Administrator. A command window should openType the following command and press Entersfc /scannowThis should start the system file checker which searches for corrupted system files and replace the same with the correct ones. Once completed, restart the computer
B Another option is testing the system in clean boot environment to eliminate possible problems due to startup programs
Click Windows icon Type msconfig in the Search box and press Enter Click on the Startup tab Click Disable All Click Apply and Close, restart the system.
C Run audio troubleshooter from the following link
Click FixIt link, click Run when prompted.
D If it does not help, right click on the small speaker icon at the lower right corner of your screen, select Playback devicesIf you have more than one device listed under Playback devices, then look for the device which do not have a green tick next to it. Right click on it and select Set as default
Then right click on the device which was previously selected as default, and then set the device as default audio device, click Apply and OkClick Ok again
If it fails too, then I do have another suggestion to confirm if the problem is due to corrupt drivers/OS files Or the problem is infact with hardware (audio chip). If you like to to try that, then here are the steps
Create a bootable disc of Ubuntu (another operating system) . We can try to start the system from a Ubuntu disc. It will allow you to run the operating system from the CD, you do not need to install Ubuntu on the hard drive. Download ISO image file for Ubuntu http://releases.ubuntu.com/11.10/(download the file named ubuntu-11.10-alternate-i386.iso) Download the ISO image file and burn it to a CD. Make sure that the image file is properly burned. This guide will show the procedurehttp://neosmart.net/wiki/display/G/Burning+ISO+Images+with+ImgBurn Now use this CD to boot the computer. You may need to press F12 during startup to get a boot device selection menu and then select your CD drive and press Enter. Once it starts from the CD select the option "Try Ubuntu". It should now start the operating system from CD without installing it. Once Ubuntu starts, test sound. If the same problem occur when in Ubuntu then it will confirm that the problem is with hardware.
If the problem do not occur while in Ubuntu, then the problem is with Windows system files/drivers and we need to address that issue.
Please let me know results, I will list additional steps/options..