How to formet kingston pen drive

Hello,
empty folders , corrupted folders ,blank Files , Videos cannot be renderred in Media players.....
even i have come across some peoples saying Antivirus Problem some saying Driver problem some saying OS problem
let me tell u please see the image carefully i hav Avast! Pro edition daily updated Win Xp Sp3 and all Motherboard Drivers and resources UPDATED. and further more u can see the hidden files also if u are thinking of some hidden or system files are using the Disk space its NOT..

i even came across a problem like all the folders and file names got chagnged into some symbol language and the sige was full i dont kno y this happens all files get deleted automatically i have only succeded one time perfect data transfer so far dat too 10kb document file
I am just FED up of this pen drive i lost my valuable Games n Videos through this pendrive transfer


HELP ME!!!

Regards
Sampath kumar