folder perms

i am able to access folder and sub folder. i cannot able to access sub sub folder within that folder.
eg: i can access c:\folder1\folder2 , but
i am unable to access c:\folder1\folder2\folder3 why
when i saw the permissions for everyone, the permission are there till folder2 but not there for folder3. why.
Could anybody tell me how to solve this problem
if i give permission for everyone to folder3 it is working. But i want a Permanent solution.
there can be any number of sub sub folders in a folder, i want the permission to reflect to all, till the last folder.
How.
I will be thankful if anybody solves my problem

You have to tell it to make the subfolder inherit the permissions of the parent folder.

When you look at permissions, click advanced, and then you can set what permissions the subfolders inherit. You would probably want to set full control to be inherited for whichever user you are.