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Some usb devices have a physical &nbsp;read-only switch. Maybe you used that without knowing?
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Some usb devices have a physical  read-only switch. Maybe you used that without knowing?

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This USB stick doesn't have the switch. &nbsp;It can be unlocked and written to on machines that don't have FIPS compliance enabled. &nbsp;In order to be written to from a machine with the FIPS compliance enabled the user will have to decrypt and then re-encrypt the USB stick. &nbsp;After that you can write to the USB until you eject it again.
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This USB stick doesn't have the switch.  It can be unlocked and written to on machines that don't have FIPS compliance enabled.  In order to be written to from a machine with the FIPS compliance enabled the user will have to decrypt and then re-encrypt the USB stick.  After that you can write to the USB until you eject it again.

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I'd ask the manufacturer as it's no general problem of windows FIPS and USB.
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I'd ask the manufacturer as it's no general problem of windows FIPS and USB.

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FIPS 140-2 enabled encryption won't write to USB drives encrypted with password once ejected from computer. &nbsp;It becomes write-protected. &nbsp;Anyone experience this?
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FIPS 140-2 enabled encryption won't write to USB drives encrypted with password once ejected from computer.  It becomes write-protected.  Anyone experience this?

USB encrypted with FIPS compliance enabled can't be written to after first ejection.

Encryption is the process of encoding messages or information in such a way that only authorized parties can read it. In an encryption scheme, the intended communication information or message, referred to as plaintext, is encrypted using an encryption algorithm, generating ciphertext that can only be read if decrypted. For technical reasons, an encryption scheme usually uses a pseudo-random encryption key generated by an algorithm. An authorized recipient can easily decrypt the message with the key provided by the originator to recipients, but not to unauthorized interceptors.