hi mate try these
1.Create a file with NOTEPAD containing the following lines and save it as FIX.REG
-------------------------- cut after this line --------------------------------
REGEDIT4
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment]
"DEVMGR_SHOW_NONPRESENT_DEVICES"="1"
-------------------------- cut before this line --------------------------------
Double click on FIX.REG and say yes to the Merge Into Registry question.
Unplug ALL USB devices.
Open Device Manager.
View, Show Hidden Devices.
Uninstall all devices under USB Controllers.
Uninstall all devices under Disk Drives that you know are not present.
Uninstall all devices under Storage Volumes. Say no to any reboot prompts until you are finished. Also, if a Storage Volume doesn't uninstall, ignore it and move to the next one.
If you have a yellow ? with unknown devices, uninstall all of the entries there as well.
When this is done, reboot TWICE.
Reconnect the USB devices and see if they're recognized properly.
2.The trick is to go to Control Panel – Admin tools – Computer Management – Disc Management.
There you can see your drive so you right click and re-partition and low level format.
After that you can High Level format.
3.
HP USB Disk Storage Format Tool - v2.1.8
