My computer is not detecting my Kingston USB1gb and 4gb they were working perfectly a day before but when i plugged them again they are not showing any sign of detections. Even not in any other pc please tell me how i fix this my USB contains an important data.
Thanks in advance
I m using Windows Xp Professional
All the usb ports are working.
First of all, you did the right tests. If the device does not work in any machine, and other devices work in the same USB ports, then it's the device. If it shows in Device Manager you can run recovery software, but since it's not even shown in Device Manager either it is dead or the USB connectors are broken. Unless they are detected in BIOS.
Can you use magnifying glass and a light to look at the USB plugs on the Kingston drive and see if the contacts are damaged or the "plastic" board-finger that holds them is cracked?
If it's not seen in the device manager, and the device manager is not showing errors (a yellow triangle with an exclamation mark), then it probably isn't seen in BIOS. Checking the BIOS requires interrupting the boot sequence by pressing a key, usually DEL, during the initial boot. Your screen will show something like "Press ESC to enter setup."
But BIOS menus are not quite as uniform as the Device Manager, so how it will show depends on the particular BIOS. Sorry.
Could you find it in "Device Manager"?
If you could find it there, you could try a USB drive recovery freeware that has helped my friend recover his important data from his inaccessible flash drive.
If you could not find it there, it is failing or dead. Therefore, you'd better buy a new one as possible as you can.