Adobe Updates Downloading OK - But NOT installing ?

Adobe Updates Downloading OK – But NOT Installing ? I am in the process of doing a completely fresh install of the operating system and everything else. All has been going OK and I have installed Photoshop CS55 from the CD, but when I try to get the latest updates it all goes wrong. My Bandwidth Monitor confirms the size of the down load and it’s speed. Then just at the end when it should then...