I have never had to deal with that but maybe he could boot into Bart's PE or
put the drive into another computer, use regedit to load the problem hive
from \Windows\system32\config, change the permissions to what they should be
or at least remove the deny permission, and then unload the hive. Offhand I
am not sure which file that hive relates to but would start with system.
Good luck. --- Steve


"David H. Lipman" <DLipman~nospam~@Verizon.Net> wrote in message
news:uO19Q4bBGHA.3936@TK2MSFTNGP12.phx.gbl...
>I was wondering if somone can shed some light on this tough predicament
>that one
> of my clients ran into. While troubleshooting a virus issue, the user
> inadvertently set the permissions for the entire HKEY_CLASSES_ROOT reg
> hive to
> deny for the Everyone and Administrator group.
>
> If you have a test machine you can try this and it will render the machine
> useless because you won't be able to execute anything. I was wondering if
> there
> is had a tool to fix this or any workarounds possible. Tests though
> Active
> Directory GPO's have proven possible but this is not an option for the
> client who
> is NOT on a Domain.
>
> Is it possible that something can/may be done in the "Safe Mode with
> Command
> Prompt" mode ?
>
> Thanx in advance !
>
> BTW: I should have Cross-Posted this, instead of multi-Posting, this to
> microsoft.public.windowsxp.help_and_support -- Sorry !
>
> --
> Dave
> http://www.claymania.com/removal-trojan-adware.html
> http://www.ik-cs.com/got-a-virus.htm
>
>