Reentering security

I have a Sandisk Cruzer Glide 16gb.

I how somehow removed the security. The drive will still receive and send info at 14.9gb but there is no security where I have to enter my password.

I would like to know if there is some way to restore the drive to the factory state?

If you’re referring to U3 security the answer is no.

If you’re referring to SecureAccess security then downloading the current version of SecureAccess to the SanDisk drive and installing it should reactivate the function.