Can't move folders but can copy and delete them

I'm running windows 7 Ultimate (up-to-date) and certain folders (mostly folders in my box sync map and program files) are treated as if they are in use by a program but process explorer tell's me that only system and explorer.exe use them. I don't know if system should be using folders or if explorer should do so even when I am not viewing the folder. I can´t overwrite the files inside but I can move or delete them and copy the file in after. I can also not rename the folders.
Any idea's of how to solve this?

Thanks in advance,
Rezm

It's not a good idea to mess with files and folders in the Program Files folder. The Program Files folder is a system folder and the location for your installed programs. Mess things up in there are some of your installed programs may not work correctly or not work at all. You could also mess Windows up. What is it exactly that you are trying to do?

I am modifying game files and sorting the maps in my box files folder.
I have now also lost the icons for skype and office.

My guess is you'll have to change or add permissions to the folders in question. You may want to do a system restore before you mess with things.