Installer bug

I've encountered this bug when installing version 5.9.5:

Although I've unchecked "Pageant" & "PuTTYgen" before pressing NEXT I get this message (attached picture). I think this message is not required if I unchecked them ahead of time versus if I didn't - because I know I have them and that's why I unchecked them in the first place

Sorry, I do not understand.

What do you mean by "unchecked them ahead of time versus if I didn't". How could you uncheck them not ahead of time?

Also note that the message does not refer to PuTTYgen/Pageant installed by PuTTY installer (which the screenshot shows), but to the PuTTYgen/Pageant installed by previous installation of WinSCP.