USB Flash Drive problem(s)

[DeltaPhoenix]

Hi.
I have this USB Flash storage device. (4 gb)
When i insert it into my computer, it tells me to format it.
Fair enough, no data on it at all.
BUT (there's always a "but")
When i press "format" from the right-click menu, it says:

Free space: Unknown.

...Which causes it to fail formatting.
How can i fix that?

 

[touch]

Hello

Some usb keys or flash drives have a little switch that locks it & makes it read only. Try looking for something like this. If you have one, switch it off.

Otherwise -

Go to Control Panel - Admin Tools - Disk Managment - Wizard will - Init the Disk, Assign Drive Letter, and Format

 

[kimsland]

This could help too https://www.techspot.com/vb/post701343-61.html
The Format an unresponsive USB Drive might do the trick