When a program tries to modify something inside Program Files folder, Windows 7 gives a security warning and asks whether I allow it or not.
I want to set a similar warning, so that programs trying to access MyStuff folder should ask for permission. I even want a warning when they try to read files within this folder.
I don't want to install 3rd party software for it if possible.
Edit:
basically I want to make sure my personal folder (emails, documents, contracts, IP) is not being exposed by random software I download.