my sound drivers keep disapering randomly. i uninstall the driver then reboot. and the installation wizard just cant seem to install it. and i notice PCI device appears under device manager but it has an exlimation mark too. windows 7 toshiba satalite LS5006
There must be a problem with the pci slot. Reinstall the card in the slot and see that helps.
In the device manager right click and install driver manually. Just point it to the location where you have stored the driver.
Uninstall the driver(only uninstall not reinstall)
Restart the system
Go to device manager
Right chick on th device with exclamation mark
Click on properties
Go to driver tab
Browse my computer for drive software
Point device manager to the location where you store the driver
Uninstall it like previously mentioned and then reboot and do the following:
1) When the Add New Hardware wizard comes up, click Cancel (It should come up if you removed the drivers completely - be sure that you remove all the software associated with it too from Add/Remove Programs)
2) Go to Device Manager, right click on the driver with the conflict (the one with the yellow exclamation mark) and choose Update.
3) You should be able to direct it to the correct driver file at this point.
If that doesn't work you may be dealing with some OS corruption or possibly even a form of malware that is over-riding your control of the computer itself.
Also be sure you're using the audio driver direct from Toshiba, found HERE .