Adminstrator can't change sercuity settings

[Guest]

I have an application written for medical equpment that uses XP. However,
many of the files and directories are "Read Only". When logged in as
Administrator and I change permissions of the files and directory starting at
the C:\ , the OS automatically changes the file/directories back to "read
only". When I then change the sercuirty settings to "Full Control" and then
Save for all users (there are about 6 defined users), the OS seems to save
the setting (slight delay) but then when I exit and re-enter the
file/directory, the security settings revert back to the original. I had
thought "Administator" (which I verified I am) could make any changes. I can
add new files to the directory but can't change the contents of existing
files or delete these files - even as the Adminstrator. Could WinXP be riding
on top of another lower level security/OS application? Any idea what's going
on here?

 

[Steven L Umbach]

If these are Active Directory domain computers then there may be Group
Policy file system settings that are enforcing NTFS permissions though
usually they do not reset that quickly. You can run rsop.msc to see what
Group Policy settings are being applied to the computer. Files system would
be under computer configuration/Windows settings/security settings. A
script using a command line utility such as cacls or xcacls could also be
doing the same and could be configured as a Scheduled Task. --- Steve