In Windows Server 2008, I have a shared folder.
For my username:
NTFS permission (read/modify)
Share Permissions (read/modify)
Result when trying to access the share:
I can traverse directory and read files, but I cannot write files. When I try to examine my effective permissions, it says "Windows can't calculate the effective permissions for [My Username]".
The folder is owned by the Administrators group (the default), and NTFS read/write permissions are granted to my username, which is a member of the Administrators group.
I notice that to make any changes to the folder locally require me to acknowledge a UAC prompt. Why does that prompt appear?
I also tried creating a new group, giving it full NTFS permissions, and full control in the shared permissions, and added my username to the group. The result is even worse… I cannot even traverse the shared folder directories or read anything at all.
Best Answer
This is how UAC works. You will find lots of documentation on UAC but they all forget to mention one thing (below).
If you are a member of the builtin administrators group and try to access a folder that allows this group to do so UAC expects you to access it in an elevated mode. If though your direct account had access to it or any other group did it would work fine (assuming you are a member of it). This issue only seems to affect the special builtin adminstrators group.
So you are meant to acces it in an elevated windows explorer right?? No, it doesn't work. Explorer is the only program that does not work from an elevated prompt, it is bugged.
Full article and work arounds I found here. It took me ages to find it http://think-like-a-computer.com/2011/05/11/uac-access-denied-on-folders-for-administrators-windows-2008/