How do I activate Photoshop and the other programs after installing them and Creative Cloud?

[christinaf21956257]

Yesterday I installed all the programs that I use in the Adobe Suite and the installation was ok. Now I have a problem to work with them. When I open the programs there is a big white square in the middle of the screen and when I take that away the opened program is shut down. What do I need to do to activate the programs?

[Bojan Živković]

Can you capture that big square? What is asking you pop-up?

[Rob_Cullen]

Do you pay a regular subscription to an Adobe Creative Cloud Plan?

Or, are you trying to Activate old, unsupported, Creative Suite software (CS-2,3,4,5,6 )?