What is cis90B3.exe found in Program Data folder???

It is standalone in the Program folder - not in any map.
It’s dated 11/9/2016.
I keep a journal of all I do on my PC and I see that on that date I had problems updating Comodo and reïnstalled it without deleting previous version

Its a post-uninstall maintenance task, you can safely delete it.

Thank you - I will - and close the topic