hello everyone
i have a really big mass on my computer
first it's windows xp professional sp1
i have 2 hubs plug on my computer usb they both support usb 2
and until yesterdy i had no probleme with usb2 it all works just fine
on my usb hub i have 5 external hard drive
yesterday i unplug opne drive and then this started all kind of error when i install usb1 driver my computer recognize perfectly the hard drives
but in the minute that i install usb 2 my computer got craazy and tell me he doesnt recognize the hard drive
i try to unplug the battery for an hour but it doesnt help
i try to change the value of the usb again this doesnt help i even format my computer it doesnt help
 
i have two case when i install usb2 my hubs are as unknow device

 
this is when i install usb1.1

 
if someone can help me i will be grateful
all of my life
 
thanks in advaced