I have a problem on my thumb drive, i think is been affected by virus or something, i unable to reformat, delete, copy, cut and rename the file inside the thmb drive.
Already try to plug into another PC also the same, using antivirus scan nothing comes out, save new file inside the thumb drive can rename, delete, copy and cut.
Try to open, cut, copy, rename & delete the file cannot be, it show "the file name you specified is not valid or too long. specify a different file name."

Using unlocker nothing lock, try using unlocker to delete cannot be done. all file name is unknow code, file size is 119kb or120kb.

when plug that thumb drive into pc and open, it will show file less than 1 sec than turn to unknow file, click show hidden file also nothing.

Now i still finding solution for that, if any senior or expert know why please give some advise, thanks.

Hmmm you done almost everything.

If you are very very sure that all PC you tested your USB have no virus, I believe your USB is already corrupted.

Try this to be sure that your PC have no virus. Download windows live CD (get it at PC App Section). Meaning you will boot your PC using CD and windows will load from your CD not from HDD. But first dont forget to plug your USB before you turn-on your PC and boot on CDRom.

If successfull on booting from CD, hopefully you can reformat your USB.

Post your results. Good luck ;)