How to format my pendrive

hi sir, sorry my problem is not solved.
I did what you said .. in command prompt they shows as
" " The type of the file system is RAW.
The new file system is FAT32.
verifying 3821M
Invalid media or track 0 bad- disk unusable "".
please send the another solution for formatting my pendrive.

Hello,
Try this 1
Click on the below link and download the file
https://ccm.net/downloads/tools/4639-hp-usb-disk-storage-format-tool/
Try formatting using the hp usb formal tool. If the problem still exists then let me know the pen drive brand name and its size.
Good Luck

hi sir, sorry my problem is not solved. while I'm using hp-usb tool its says that " FAILED TO FORMAT THE DEVICE ".
my pendrive company is KINGSTON- DATA TRAVELER 120 sir..
its capacity is 4Gb sir.

hi sir, i just download now the "kingston _format_utility" ans installed. there is no use sir.
while i read the page in last they given as warning i.e "" Kingston Format Utility is only supported on the DTHX30/XX "" . that why after install the software its not working properly.

hi sir, i just download now the "kingston _format_utility" and installed. there is no use sir.my problem is not cleared.
while i go through the page in last they given as warning i.e "" Kingston Format Utility is only supported on the DTHX30/XX "" . that why after install the software its not working properly. my view is my pendrive is not in form DTHX30/XX, so my problem is not solved by kingston format utility .