Why don’t you make 4 separate Progress Bars for the Installation e.g. it will tell you how far the download is (13% of 2,6 GB, not estimated time) then once it’s completed go from 1/4 to 2/4 decompressing etc.,(reply>), Lets add progress bars for every transistor.,(reply>), Because that's be too complicated to the user. Don't you know ? If there's more than two buttons an one image, people will be confused. Or so believe far too many people thinking they can be UX experts.