You'll have to try formatting it with other than Windows. I like "HP USB Formatter" (see google) and of course formatting in Linux (all hail the most powerful?)
When I plug this USB flash drive into my computer it takes a long time to show up in as a drive in My Computer (the pop-up window doesn't even appear). When it does show up as removable storage, I have no way of accessing it, since whatever I do (double click, right-click on it) the My Computer file just freezes, it stops responding, and whatever program I try to access it with just ends up freezing as well (I use Windows 7 by the way). When I unplug the USB drive everything comes back to normal. I tried accessing it via CMD and tried to run the chkdsk as well, but nothing happens. I have also tried plugging the drive in different ports and different computers, the same issue arises everytime. Formatting the drive is out of question since everything just ends up freezing, so I have no way of doing so.
Any ideas? I would like to make the flash drive functional again.
Any help is appreciated!