The executable ToggleProof1.exe can be used to edit user profiles to disable proofing in Office 2010.
Open command prompt as Administrator before navigating to the folder containing the ToggleProof1.exe executable. See usage and the example below for the correct command line argument.
Usage: ToggleProof.exe “path\to\ntuser.dat\file”
Example: ToggleProof1.exe F:\Users\Students\Profiles\Student001.V2\NTUSER.DAT
After running a successfully command line argument a confirmation will be displayed.
Rename the user DAT extension to the MAN extension after disabling proofing.