I am using windows 7 ultimate sp1 duel boot with windows xp sp2
i have a usb wireless mouse , USB wireless LAN adapter and USB WD My Passport 500GB HDD and Iomega 500GB HDD alos USB
They where all working fine before 2 days
then suddenly windows prompts a messege saying '' Usb device not recognized ''
and the messege flashes spontanously every 2-3 minutes
I EVEN DISCONNECTED all usb devices but the messege still persists every 2-3 minutes comes spontanously.
I have encountered the same problem before one month but ignored it it was fixed by itself.
i installed a fresh copy of windows 7 but still the same also same problem in windows xp.
Laptop model : Toshiba satellite L300
CPU : Intel(R) Core(TM)2 Duo CPU T5800 @ 2.00GHz
Memory : 2.00 GB
So please help i don't know what it could be , i appretiate it thanks