I was running Vista with two NTFS partitions (C: and D:), then formatted C: partition and installed Windows 7 RC.
The second partition (D:) had some files security set on files and folders.
After Win 7 was installed, some files on drive D: were not accessible anymore and I was getting “Access Denied”
I tried to right-click/properties on the folders that were not accessible and changed their owner and changed permissions but still some folders were still inaccessible not matter what I did.
After some research, it turned out the tool “cacls” that allows one to display or change ACLs (access control lists) can help to reset ACLs.
In Windows 7 it is called “icalcs”. To reset files permissions:
1. Run “cmd” as Administrator
2. Go to the drive or folder in question, for example:
CD /D D:
3. To reset all the files permissions, type:
icacls * /T /Q /C /RESET
4. And that’s it!
After that, the files permissions were reset and I could access them back again.
It is possible that “icacls” might fail. For that try to take ownership of the files first.
Just before Step (3), please type the following command:
takeown /R /F *
cacls is a handy tool to change permissions of files “en masse”.
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