If you wish to prevent users from change the setting of keyboard navigation, you can dim it (make it unavailable).

In Windows 2000, this check box is on the Effects tab of Display Properties and is titled Hide keyboard navigation indicators until I use the Alt key.

In Windows XP, the check box is on the Effects page of the Appearance tab of Display Properties and is titled Hide undefined letter for keyboard navigation until I use the ALT key.

You can dim the check box for a specific user or for all users.

Current User

1. Copy / Paste the following to a hkbni.reg file:

REGEDIT4

\[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\]
"NoChangeKeyboardNavigationIndicators"=dword:00000001

2. Merge the hkbni.reg file with the registry or run regedit /s hkbni.reg.

3. The user must log off and on for the setting to take effect.

All Users

1. Copy / Paste the following to a hkbni.reg file:

REGEDIT4

\[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\]
"NoChangeKeyboardNavigationIndicators"=dword:00000001

2. Merge the hkbni.reg file with the registry or run regedit /s hkbni.reg.

3. You must restart the computer for the setting to take effect.