Kleopatra is not running properly as a part of the gpg4win installation. My OS is Win7, English.
I find the kleopatra.exe file on 2 places:
C:\Program Files (x86)\GNU\GnuPG
C:\Program Files (x86)\GNU\GnuPG\bin
The latter one gives error messages about missing dlls.
The problem is the instability of Kleopatra. It may be running, but not accessible. Or it may stop running. Error messages are confused, and inconsistent. There are many threads in the various related forums about this problem with Kleopatra. But it seems never to be solved.
For the time being, I shall work with GPA instead.
I do not know where else to report bugs, as the website of gpg4win is ot clear enough to me. If this is the wrong place, then please send this message further to where it belongs.