Why does flash drive show no space available?

[Agnija]

i have a 8GB usb flash device , and I have been using it without problems for several months. Now when I plug it in, the drive comes up in my computer as drive E as it usually does, . If I format it it says " Insert a disc" The drive properties show 0kb for free space and 0kb for used space.
If it helps i have Windows Vista add flash drive "LEXAR"

[Death Slaught]

Open disk management - Right click "My computer" > choose "Manage" > Disk Management

In disk management - right click the drive > delete the partition/drive.
Then right click the drive again > choose "New partition" and follow the wizard.


Regards, Death