No it's not the same thing. Private folder means it's your folder & that nobody else can open it/edit any files in it. They can see it in Windows Explorer but that's it. If they try to open it they will see a message something like "The folder is not avilable. It's maybe moved or deleted". Encrypted is that the folder is complety "unreadable" before you support the folder with the password & decrypt it. After that it's avilable again.