Serious Problem

[Byron Currin]

I was messing around with MS-DOS and trying new commands.
I created a New User then with my original user account
that had administration priviledges I inputed the CACLS
command and tried to deny the New User access to the C:
drive. Instead of denying the New User acess to the C:, it
denied the user access to C:\Windows\System32 and also
denied me access. When I started my computer it came up
with the Windows XP loading screen and from there it
retstarted itself. I've tried re-installing Windows XP but
it comes up with an error message. I've also tried to run
the CACLS command from a Startup Disk but it tells me This
Program cannot be run in MS-DOS mode.

What can I do to fix this problem?

Please Help.

 

[Chris Jackson \(MVP\)]

Yikes - if you're not careful with CACLS, you can do exactly what you did -
deny everybody (including the system itself) access to your entire hard
drive, as you have found out. (That's why they limit it to administrators
only.) There are some suggestions here:

http://www.experts-exchange.com/Security/Win_Security/Q_20352725.html

Hopefully you'll find something that will help.