Hello Jeff,
Many thanks for your answer, i use windows 8.1! I have found the problems: For install the news version the install need the old installer (but i delete all installer, cause they use a lot place on hard drive (SSD)).
I have desinstall the whole Adobe and réinstalled it, i have save the whole installer on a external disk. So when the installer asked the old installer i indicate to programm my external disk ans all works good now.
Many thanks for you help, i have just do not to delete old file (sad to have to save old installler just for install the new).
Wallie
(sorry my english)