Where are the voice training files?

it seems it depends if you had 'roaming' enabled.
if roaming isn't enab;ed the steps are:

Please follow the steps below to manually restore the user file for versions 4, 5, 6, 7, 8, 9, 10: (without Roaming enabled)

Close Dragon NaturallySpeaking before continuing.
Navigate into the Users folder in the installation folder:
C:\ProgramData\Nuance\NaturallySpeaking9\Users (by default version 9.5 and version 10 running on Windows Vista)
C:\Documents and Settings\All Users\Application Data\Nuance\NaturallySpeaking\Users\ (by default version 9 and 10)
C:\Documents and Settings\All Users\Application Data\ScanSoft\NaturallySpeaking\Users\ (by default version 8)
C:\Documents and Settings\All Users\Application Data\ScanSoft\NaturallySpeaking\Users\ (by default version 7.3)
C:\Program Files\Dragon\NaturallySpeaking\Users\ (by default version 7.0).
C:\Program Files\Dragon\NaturallySpeaking\Users\ (by default version 6).
C:\Program Files\Dragon Systems\NaturallySpeaking\Users\ (by default version 5)
C:\NatSpeak\Users\ (by default version 4).
In the "Users" folder, go into the Folder that corresponds to the user that is corrupt.
Rename the "current" folder to "old".
Make a copy in the same location of the folder named "backup".
Then rename the folder called "copy of backup" to "current".
Reboot the machine and start Dragon. The User should now load successfully.

with roaming the steps are:

Delete the local roaming user file. By default, the local roaming user file is located in the following directory (unless the local roaming user cache has been pointed to a different location in the Administrative settings:)

C:\ProgramData\Nuance\NaturallySpeaking10\RoamingUsers\[display name]\[username] (version 10 running on Windows Vista).
C:\ProgramData\Nuance\NaturallySpeaking9\RoamingUsers\[display name]\[username] (version 9.5 running on Windows Vista).
C:\Documents and Settings\All Users\Application Data\Nuance\NaturallySpeaking9\RoamingUsers\[display name]\[username] (version 9).
C:\Documents and Settings\All Users\Application Data\Nuance\NaturallySpeaking8\RoamingUsers\[username] (version 8).

The [display name] is the name defined for the Master Roaming User location.
The [username] is the name of the individual Roaming User.

After deleting the local roaming user file, try opening the user again. Dragon NaturallySpeaking will download a new copy from the master roaming user location.


If deleting the local roaming user file does not help, then the master roaming user file is corrupted. Delete the local roaming user files from the PCs on which that user has been opened. Then restore the user file to the master roaming user location from a server backup. If a server backup is not available, a new user profile will need to be created.

Additional information


Restoring the user files will also resolve the following error:
An error occurred while saving or copying user files. The files "C:\Documents and Settings\All Users\Application Data\Nuance\NaturallySpeaking\Users\User name\current\aco.ini" could not be copied to "C:\Documents and Settings\All Users\Application Data\Nuance\NaturallySpeaking\Users\User name\tb\aco.ini".

for more infomation please see:

http://knowledgebase.nuance.com/view.asp?60VQ=GFMJ