hi
open my computer,tools,folder option ,view,hidden files and folders
select show hidden files and folder,now you can see your hidden files
now select the hidden file , right click on it ,end of menu ,you will see properties ,go in it ,you will see window name your file name properties ,after general is security tab ,go in it ,in security tab ,you will see name of some users ,as system and …,now hit edit button , then add button,then advanced,then find now ,then find your user name ,then ok ,then ok again ,now select the user you added now and check mark the full control in allow part,now ok ,and ok .finish

now let we learn how can you help you on all of vista ,xp or the same thing .
left click empty place on your desktop and press F1 button ,the help and support panel will open ,you can search your ask by placing the word on search box ,or you can brows it by going into find an answer parts ,now we try ,write "access denied" on it and enter ,now you will see alot of answers ,now the most thing similar to your wants is number 1 ,Troubleshoot "access denied" when opening files or folders,now you read more ,it will help you ,all of your vista ,xp has just some same ,other oses also have the same

be succeed