Question : Problem: Problems with USB mass storage devices

Whenever I plug a USB mass storage device in, the device is recognized but asks me if i want to format the disk. I tried to reinstall the drivers. No luck yet.

Answer : Problem: Problems with USB mass storage devices

If you are experiencing this problem only on this PC, then it is most likely that the Power supply unit is dying out or not providing enough Juice to properly recognize the device, try using different USB ports, different USB cables & finally try replacing the PSU for testing purposes.

hope this helps.