You can't. You can't roll back permissions once you have destroyed them
because there is no way to evaluate what would have happened to objects
underneath the container had these permissions been in effect when you
created that object.
The best you can do is set some kind of sane permission and hope for the
best. You can't set "special permission" because that indicates a
non-standard combination of flags. To return the root of the drive to the
default permissions, run these two commands from an elevated command prompt:
icacls <drive> /grant AuthenticatedUsers

OI)(CI)(IO)(M)
icacls <drive> /grant AuthenticatedUsers

AD)
Make sure you replace <drive> with the name of your drive, and make sure you
specify it with a slash, as in "d:\"
BTW, I'm glad your Linux box has been up for 12 days, but that means you are
probably missing at least four critical security patches that you ought to go
apply.
---
Your question may already be answered in Windows Vista Security:
http://www.amazon.com/gp/product/047...otectyourwi-20
"Man-wai Chang ToDie" wrote:
> I removed Authenticated Users from a data drive's security setting. Now
> I want to add it back. But I could not tick the "Special Permission" box.
>
> How could I restore AU and its permissions?
>
> --
> @~@ Might, Courage, Vision, SINCERITY.
> / v \ Simplicity is Beauty! May the Force and Farce be with you!
> /( _ )\ (Xubuntu 7.04) Linux 2.6.24
> ^ ^ 14:27:01 up 12 days 20:01 1 user load average: 1.58 1.92 1.96
> ç¶œ æ´ (CSSA):
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>