User Profile Migration.

I am stuck in this user profile migration and need some assistance.  

I am working on a directory called USERPROFILES which contain username sub-folders.  Each subfolder contains a "My Document" which I am getting an access-denied even login as the administrator.  

From the root folder USERPROFILES, I go to the advanced security settings>replace all child object permission... and add administrator as the owner, I am getting an error saying access is denied on the my documents folder in each user profile.  

Please advise how to fix this.  

Thanks.