Hello. So my computer had a default program (I don't know which program) to open zip. files. The Zip folders appeared normally (the icon with a folder with a ziper) and when I clicked them with the right button they gave me the option to "extract files". I had instaled one program (Express Zip) I don't remember why, and when I did it gave another option when doing that, besides "extract files" it had another option to open the folders with that program. However, today I mistakenly choose the option to open with Express Zip and it said it had to install some components. So I did, and it change