ALL ADOBE APPS CRASHING

All apps of adobe start then , after 10 seconds crashed and disappeared .

i have pc desktop:

windows 8.1 pro ( 64 )

HD : (1 t.b)

ram : 16

processor : intel i7-2600 (3.40 ghz )                   Display Adapter Nividia GeForce GTX 560 Ti

display adapter :Nividia GeForce GTX 560 Ti