Try starting over. Do the whole Change Drive Type initialization again. As soon as that's done, save the changes to the drive and reboot - don't do anything else. Once you're rebooted, partition the drive, save the changes, and reboot again. Then format your partitions from Workbench.
The 'Modify Bad Block List', 'Low-Level Format', and 'Verify Data On Drive' options should almost never be used.
