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From: John on 3 Jun 2010 14:40
I have this very strange problem and I hoped all you knowledgable techs might
have an answer.
Some background: late last year one of my customers had data corruption on
one of their computers. I restored the corrupted data from a backup but
noted there were disk errors on the main hard drive in Event Viewer. I
suggested replacing the computer which the customer did. I installed all the
user data and setup the computer. But the new computer started getting disk
errors also. I finally traced the problem to a bad external backup drive
that was causing data corruption on the main HD only, and only when Windows
Backup started. I removed the bad external drive and the disk errors
stopped.
My problem is that since then sometimes on some files and folders
seemingly without warning, their access permissions will change. Even after
explicitly setting the permissions on the folders some of the files in those
folders will become inaccessable unless I use the local admin account to take
ownership and then re-add the permissions manually. I have reset the
permissions at the folderlevel but not all the files in the folder change
their permissions. I have to change the permissions on each file manually.
The computer is running Windows XP Pro. Let me know if you need more
information.

Thanks in advance.

John
From: Tim Meddick on 3 Jun 2010 14:48
Have you tried removing the SYSTEM entry on the folder's permissions, from
the users granted access?

Or even adding SYSTEM entry but with all "denied" permissions, for that
folder structure...

(It is usually the SYSTEM that is responsible for changing (re-setting)
file & folder permissions).

==

Cheers, Tim Meddick, Peckham, London. :-)




"John" <John(a)discussions.microsoft.com> wrote in message
news:2EE1E86A-F388-4F01-8F37-E60D5079B56D(a)microsoft.com...
>I have this very strange problem and I hoped all you knowledgable techs
>might
> have an answer.
> Some background: late last year one of my customers had data corruption
> on
> one of their computers. I restored the corrupted data from a backup but
> noted there were disk errors on the main hard drive in Event Viewer. I
> suggested replacing the computer which the customer did. I installed all
> the
> user data and setup the computer. But the new computer started getting
> disk
> errors also. I finally traced the problem to a bad external backup drive
> that was causing data corruption on the main HD only, and only when
> Windows
> Backup started. I removed the bad external drive and the disk errors
> stopped.
> My problem is that since then sometimes on some files and folders
> seemingly without warning, their access permissions will change. Even
> after
> explicitly setting the permissions on the folders some of the files in
> those
> folders will become inaccessable unless I use the local admin account to
> take
> ownership and then re-add the permissions manually. I have reset the
> permissions at the folderlevel but not all the files in the folder change
> their permissions. I have to change the permissions on each file
> manually.
> The computer is running Windows XP Pro. Let me know if you need more
> information.
>
> Thanks in advance.
>
> John

From: John on 3 Jun 2010 22:15
No I haven't. Interestingly when I change the owner of the file to the admin
account I can then see that the original owner and the sytem are listed as
having access but not before. The only time I have seen this before is when
certain viruses try to protect themselves and change the file permissions.
But this is not a virus issue. Thanks for the tip.

John

"Tim Meddick" wrote:

> Have you tried removing the SYSTEM entry on the folder's permissions, from
> the users granted access?
>
> Or even adding SYSTEM entry but with all "denied" permissions, for that
> folder structure...
>
> (It is usually the SYSTEM that is responsible for changing (re-setting)
> file & folder permissions).
>
> ==
>
> Cheers, Tim Meddick, Peckham, London. :-)
>
>
>
>
> "John" <John(a)discussions.microsoft.com> wrote in message
> news:2EE1E86A-F388-4F01-8F37-E60D5079B56D(a)microsoft.com...
> >I have this very strange problem and I hoped all you knowledgable techs
> >might
> > have an answer.
> > Some background: late last year one of my customers had data corruption
> > on
> > one of their computers. I restored the corrupted data from a backup but
> > noted there were disk errors on the main hard drive in Event Viewer. I
> > suggested replacing the computer which the customer did. I installed all
> > the
> > user data and setup the computer. But the new computer started getting
> > disk
> > errors also. I finally traced the problem to a bad external backup drive
> > that was causing data corruption on the main HD only, and only when
> > Windows
> > Backup started. I removed the bad external drive and the disk errors
> > stopped.
> > My problem is that since then sometimes on some files and folders
> > seemingly without warning, their access permissions will change. Even
> > after
> > explicitly setting the permissions on the folders some of the files in
> > those
> > folders will become inaccessable unless I use the local admin account to
> > take
> > ownership and then re-add the permissions manually. I have reset the
> > permissions at the folderlevel but not all the files in the folder change
> > their permissions. I have to change the permissions on each file
> > manually.
> > The computer is running Windows XP Pro. Let me know if you need more
> > information.
> >
> > Thanks in advance.
> >
> > John
>
> .
>
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