I appreciate any help. I have a Gradient as in my picture and I get always Banding or Stepping Lines. Photoshop does a better job here.
Does anybody know what is wrong?
I don't know anything about home and student. However we need to know the builds and the color management settings. of both applications. Was smooth selected?
I have two pictures of the color management here:
I think sRGB and Adobe RGB should be the same for an 8 bit per Channel RGB in this case. Maybe the option "dither" is important. But I cannot find it in my Version 126.96.36.1990 of Photo Paint Home&Student X8 (2016).
First I do not read your native language but it appears that in Photoshop you're using relative colorimetric rendering with black point compensation turned on.
That is a non ICC compliant default used by Adobe, you can change both applications to perceptual rendering. Try WCS or LCMS color engine in PP.
It seems working better now. Thanks.
You might try turning on the bi linear zoom setting