My friend has a USB memory stick which is supposed to be 4 gb.
Suddenly it has changed its size after they actually tried new software for locking usb drives.
As a result the memory sticks size is reduced to 541 kb.
The memory stick is a San Cruzer USB and nothing has been copied to it as its size is greatly reduced.
Why is this and can anything be done to fix it? Is this because of a virus?