Removing expired keys

[Jerry]

I am not sure if this is the best place to ask this question, but it is
a start.

I am using GPG4WIN 3.1.5 on a Windows 10 machine. Over the years, I
have accumulated several keys that are expired. Is there a way to
remove those expired keys automatically, either from within Kleopatra
or from the command line? I have tried Googling, but nothing useful
ever appeared.

Thanks!

-- 
Jerry