I formatted my machine TOSHIBA SATELLITE U305 S7449 before had Windows Vista, Windows XP now placed, where should I download the sound drivers?

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

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.

You can download any orall the Windows XP or Vista device drivers for your model laptop from theToshiba WEB site from their download page. Make sure you enter the model ofyour 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 http://blitware.com/adpages/driverfetch/manufacturer/?manufacturer=Toshiba&gclid=CMOVxNCBx6ACFSgnawodoHNGbA

http://www.driversdown.com/drivers.asp?ID=92704&brNum=3&show=0 for vista
http://notebookdriversdownload.com/download-toshiba-satellite-u305-s5097-audio-driver-for-windows-7/
for win7

In Toshiba's support page there is a Realtek driver for Vista, and two of them, Realtek and Conexant, for 7.
Download and install the most appropriate one for your case.
Hope you are able to sort your problems out.
Regards, Carlos

I have located the driver for you.
Please click on this link to download the Windows XP audio driver for the Toshiba Satelite U305-S5097 :-
http://www.csd.toshiba.com/cgi-bin/tais/support/jsp/modelContent.jsp?ct=DL&os=&category=&moid=1757725&rpn=PSU34U&modelFilter=U305-S5097&selCategory=3&selFamily=1073768663
If you need further assistance, please leave a comment.

Audio driver for xp sp2 here.

open link and select Realtek Audio Driver for Windows Vista (v6.0.1.5473; 11-12-2007; 18M)

http://www.csd.toshiba.com/cgi-bin/tais/support/jsp/modelContent.jsp?ct=DL&os=&category=&moid=1854868&rpn=PSU30U&modelFilter=U305-S7448&selCategory=3&selFamily=1073768663&selModel=1854868%7CPSU30U

Download driver and installed it.