The exact same issue has been posted several times a year ago. Kaspersky will show a popup to get me to sign in to ‘My Kaspersky’. I won’t. However there is no option to completely disable it, only to ‘Remind me later’. I don’t want any reminding, just do your job.
According to this topic it was solved:
But apparently in my version 21.3.10.391(a) someone thought it was a good idea to unsolve it:

The notification options are all turned off:

Already tried the registry hack option:

Unfortunately the popup persists.
How to get rid of this popup once and for all?
Thanks in advance for the help.
Best answer by Kaastosti
Although the version is still reported as being the same:

The option is back!

So whoever did a quick fix, thanks