I hope someone can help with this because I am well and truly stumped. I don't no how it happened but every icon on my dads computer now opens Photoshop, same to for every program in the start menu. I have been through all the program(work,chrome and various others) files and every time I try to open the program from there Photoshop still opens it even happens when I try to open cmd windows. The only thing that works is the file manager and parts of the control panel, I cant even use the backup restore utility because it opens Photoshop. I have lent him my laptop as I can't work out a way to fix it without reinstalling windows as I work in IT and have never seen this happen and now I am curious. I am thinking it might be something in the registry but Its like looking for a needle in a hay stack. I have also managed to remove Photoshop but still no change only now the icons and everything else opens nothing instead.