i installed windows7 on my toshiba laptop and it has no sound. when installing the drivers i have downloaded it shows error and can not install. how can i down load valid drivers for my toshiba laptop
Go Control Panel, Hardware, Device Managerand see if the sound circuitry is displayed and if a brand name is mentioned (and hopefully a model number) Google model number and see if you can find a generic driver for it.
These days the sound and USB and drive controllers may all be part of a single chipset.
If you can establish which, you may find Toshiba have continued to use that chipset on a computer which has Win7 installed as supplied. Worth having a look on the Toshiba site, though a call to them might locate someone who has been through this process with a customer before.