SYMPTOMS
If you try to use the MS-DOS UNDELETE command in Windows 95, you may
receive the following error message:
Windows has disabled direct disk access to protect long filenames.
To override this protection, see the LOCK /? command for more
information.
The system has been halted. Press CTRL+ALT+DEL to restart your
computer.
RESOLUTION
NOTE: The UNDELETE command runs in MS-DOS mode by default. You should run
these commands in MS-DOS mode.
Lock the drive before you issue the UNDELETE command. To lock the drive,
type
lock <x>:
where <x> is the letter of the drive you want to lock.
When you are done using the UNDELETE command, unlock the drive by typing
unlock <x>:
where <x> is the letter of the drive you want to unlock.
WARNING: Using the LOCK command enables direct disk access. A program that
accesses the disk directly can destroy long file names. You should back up
long file names before running a program that could harm them. To back up
long file names, use the Lfnbk.exe program located in the Admin\Apptools\
Lfnbk folder on the Windows 95 CD-ROM. See the Lfnbk.txt file in the same
folder for information about this program.
The Lfnbk.exe program is included in the CD-ROM version of Windows 95, but
not in the floppy disk version. If you are using the floppy disk version
of Windows 95 and you want to use Lfnbk.exe, please see the following
article in the Microsoft Knowledge Base for information about the
availability of Lfnbk.exe:
135315 CD-ROM Extras for Microsoft Windows 95 Upgrade