how do I totally delete Photo Gallery from my PC

I'm having a lot of trouble with Photo Gallery in printing my photos.  As soon as I hit print, the picture is normal for about 3 seconds, then turns all greenish looking and prints all greenish looking. I spent about one hour with the  printer support guy and we came to the conclusion that it is not the printer.  Photo Gallery constantly freezes.  I have already downloaded the "fixes", but they didn't "work".  So I would like to permanently remove it from my pc.  But I can't find an uninstall button anywhere and it is not listed in the add/remove programs' list. I'd rather use the old fashioned Microsoft Picture Manager.