My pen drive is "sigma tel" (237 mb available). can not copy files in or out. If I click on it a massage pops up to insert disk. So i was trying to format, but there was no response there. I have tried to replace new partition with various applications but some reported that there is not MBR. I think if I able to format that the drive might be usable again .

Ashraf, June 2007

My Os not detecting the pendrive.So I cant use.

jyotibikash, August 2007

I couldn't format my usb pen by right clicking on it in my computer, then clicking format.
I managed to format it by right clicking on my computer, then manage, then I went to disk management and formatted my usb pen from there.

starofale, July 2007