External USB Devices not getting Detected

[walky]

hi Friends,

I am facing an issue with the external usb devices. I am trying to connect a WD 120GB external USB harddisk an a 2GB Transcend pendrive to my system. These devices are not getting detected. I dont know what has happened.

Because previously the system used to detect pendrives and External Harddisks. The devices that i am trying to connect to my desktop are running fine with my Laptop. So it ensures that the devices are working fine.

Please help me out. Please find the system configuration below:
Intel Pentium 4, 2.26 GHz processor, 1.25 GB RAM, 80 GB Harddisk, Operating System is XP sp2.

[dhanusaud]

Update drivers.

I mean drivers for USB got corrupt or they are disabled by third app.