I have 4 GB pen Drive, property show 199 Mb only how i can repaired it for 4GB capacity

Ramesh Sharma, September 2013

Try to format it by windows format or DOS format or update flash drive firmware

this will help you

http://www.flashdrive-repair.com/2012/12/how-to-repair-usb-flash-drive-in-three.html

Ashraf Mansour, December 2013

Try formating it.
Under Windows, in the explorer when the stick is connected to any USB port. Right-click the drive leter assigned to the USB drive. You'll see an option to format. Click that entry.

If that don't work, it may be that the stick is defective.

As for any driver, there are not realy any. It's just an identification and setup process, then the USB drive is accessed like an ordinary hard drive.

Electro, October 2013