i am looking for a program that allows me to say have a laptop and a desktop that are exact copies of one another. if a change a file on one the same file is changed on the other. i know i can do this with cloud services but i am looking for something a little more in depth. to the point that if i install something on my laptop then either connect it to the internet or via usb to the desktop it will update the files. or if i create a user or edit regedit files on one then the other will update when either of the two happen. is there any software like this let me know please.