Question : "Make this folder private" option is disabled

in any folder in my Windows XP, in sharing Tab in properties ... the command "Make this folder private" in (local sharing and security)  is usually disabled.  
Then how may I turn it enabled??

Answer : "Make this folder private" option is disabled

Because that folder is not in that user profile this source:=
http://support.microsoft.com/kb/307286

This will solve your problem.