An administrator can choose to require encryption when using external devices, such as a USB drive. When inserting or accessing an unencrypted external device, you may see one of the following messages:

You have been denied access to the unencrypted removable [drive letter]. Do you want to encrypt [drive letter]?

Or

[Drive letter] is not accessible. Access is denied.

If encryption is required, you must encrypt the device to use it. You need to assign at least one user and password to an encrypted device.

You may also add additional users who may access the device.

To encrypt a device:

1. Insert the device.
2. A pop-up message asks if you wish to encrypt the device.
3. Select Yes.

Or

1. Insert the device.
2. In Windows Explorer, right-click the device; then, select Encrypt Medium.
3. For the Primary User, enter a password in the Password field. Enter the same password in the Confirm password field.
4. If you wish to add more users:
   1. Click Add User ...
   2. Fill in the User name, Password and Confirm password fields; then, click OK.
5. Click Next to continue with encryption, or return to Step 4 to add more users.
6. Select either Keep existing files or Erase files; then, click Next.
   

   Important: If you choose Erase files, all data on the device will be deleted.

    
7. If you wish to securely erase unused space on the device, select the Erase fragments in unused space on device check box. Click Next.
8. On the Start encryption screen, carefully review the options you have selected; then, click Encrypt.
9. Your device will be encrypted.