when i go to hardware manager
it shows
?other device
PCI universal serial Bus

Which driver is missing...
some says it is because mother board drive has not been installed ....
but i am using intel mother baord in which its shows either driver has been installed or not
and in that driver section all the drivers has been installed according to cd(auto run ) "installed"
only some wireless....is not installed which i dont think is needed...

so what is missing ,where can i get that missing driver?
thanks for help.