I am using windows XP Professional SP3. When ever I am trying to use a USB drive, it does not recognised. Earlyer it was working in the same computer. NOw it is working with same model of computers. I repaired the OS but it failed. In that particular system non of the USB based storage divices are working. USB ports are working fine. Can somepne tell me without formating the system how to fix the problem.Brundaban Acharya

This is an Exchange Server forum...please post in the Windows XP forum: http://social.technet.microsoft.com/Forums/en/category/windowsxpitpro Tim Harrington - Catapult Systems - http://HowDoUC.blogspot.com