Pen drive showing used space as 0KB and free space as 0KB

Hello,
I have a Kingston Pendrive of 4 GB. When i connect it ,it doesn't get displayed on My Computer screen, then when i do right click on My Computer and Click on Disk Management, it gets displayed, but with Used Space as 0KB and free space also 0KB, and no Media. It is not giving me a option of 'New Sample Volume' if i do Right click on the USB drive.

Also if i try to run this 'attrib -h -r -s /s /d H:\*.*' command in cmd, it is saying 'Path not found - H:\'.

Also i tried to format with 'HP USB Disk Storage Format Tool' but it says 'There is no Media in the Specified drive'

Please help me to recover my pendrive.