Simply just google it..!!! And you will find softwares.... as Bill Gates have dollars in his bank
I Googled first. Found Rohos mini drive (free version gives 8 GB) and USB Safeguard (which creates a password protected partition). But I am trying to password protect whole USB.
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Ya, that is why I didn't depend on Bitlocker. I use many Linux PCs as well. As for Truecrypt, we need it in other system as for it to work (I heard so).
Thanks for your replies.