U305 s7449 "no audio device instaled"

You can download the device drivers for your model laptop from the Toshiba WEB site from their download page. Make sure you enter the model of your laptop so you can get the correct drivers. Please click on this link: - http://www.csd.toshiba.com/cgi-bin/tais/support/jsp/home.jsp

The USB port is damaged, or missing the driver for that port, check device manager.

What I could recon from your question is that your audio driver is not installed in your reformatted PC.

Please be informed that any Driver software depends upon the PC make, Motherboard type and Operating System. You need to know all the three information's to do get going.


Please refer the above image. It is clearly seen that your Laptop does not support Windows XP. It only supports Windows Vista or higher.
Thus I would request you to use Windows 7 as OS because all the hardware drivers are available for windows 7 by Toshiba including the Sound.
http://www.csd.toshiba.com/cgi-bin/tais/support/jsp/modelContent.jsp?ct=DL&os=&category=&moid=1854869&rpn=PSU30U&modelFilter=U305-S7449&selCategory=2756709&selFamily=1073768663#contentArea
This is the Direct Driver Download link for your laptop. Here you need to select your Operating System (Windows7) and all the drivers will follow in the list below. Here you will also find windows XP but you will see that a lot of drivers are missing including the sound driver.
So, my suggestion is to upgrade to windows 7.
Good Luck.

Try the card reader driver. Click here. (Ricoh card reader driver) You didn't mention which operating system you have so select the right one at the top of the page in the link.

if your computer came with a motherboard disc the sound drivers could be on it
you might have to uninstall then restart your computer then reinstall both the sound drivers and the sound card make sure you have both of these devices backed up to a disc before uninstalling
a yellow? question mark means you need to install/update driver to do this
right click to install driver also
click start control panel administrive tools computer management device manager scroll to sound,video and game controllers you might see a yellow question mark? Right click to reinstall drivers
click start control panel sounds and audio,volume,advanced,speakers make sure you have selected the
(((appropriate speakers))) also audio you will find 3 drop down lists make sure you have the correct settings there
also
click start control panel sounds and audio devices you can adjust the volume there also select speaker volume you can change your settings there you can also tick in the box place icon in taskbar
if his does not fix the problem

have you tried this control panel sounds and audio,volume,advanced,speakers select the appropriate speakers from the drop down list or navigate to the device manager scroll to system devices + to expand,system speaker right click properties then select use this device (enable)

hope this helps
don

here is the download link

Toshiba Satellite U305-S7449 driver

try to check the device manager and see if there's a driver problem, you can reinstall the driver or just reconnect the device to your unit.

Hi,
Try to uninstalled the audio driver.then restart the machine and again install the audio driver.hope this will work for you.


Thanks

well, the driver is not installed properly.. you must install it first so that u can use your cam.. f installed already, check your connections and make sure your cam is detected by your computer

Open your computer then boot to safe mode(press F8), go to add/remove programs then uninstall the toshiba audio driver, also check on the Device Manager if it is still there then uninstall it. Reboot the computer to normal mode then install the toshiba audio driver again. Be sure to have the correct driver downloaded.