464 | Chapter 8: Users and Security
Select any user in the list, and then use the checkboxes in the list below to
modify the permissions for that user. In this example, members of the Everyone
group are allowed to read the selected file, but not allowed to write to it.
Although this window only shows the permissions for one user or group at a
time, you can click Advanced to see a better overview, as shown in
Figure 8-5.
In some cases, when you attempt to remove or modify permissions in the
standard Permissions window (Figure 8-4), Windows will complain about
the fact that the object is inheriting permissions. The reason is the Inherit
from parent option in the Advanced Security Settings dialog shown in
Figure 8-5.
Inheritance and ownership
Inheritance can be confusing at first, but it does save time in the long run.
Essentially, if you set the permissions of a folder, those permissions will
propagate to all of the files and subfolders contained therein (although
Windows will usually ask you whether or not you want this to happen).
Figure 8-4. The standard Permissions window allows you to permit or deny access to
other users on your computer or in your workgroup
Permissions and Security | 465
Users and
Security
When the permissions for a ???parent??? folder trickle down to a ???child??? folder
or file, that child object is said to ???inherit??? the permissions of its parent
folder. Furthermore, the child??™s inherited permissions are locked, at least
until you turn off the aforementioned Inherit from parent option.
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