windows 8.1 saving gpg42win privkey passphrase in memory

I’m using gpg4win 2.2.1 on windows 8.1.

I decrypt a doc with this cmd on the command line:

gpg -d doc.txt

I get a pop up from kleopatra asking for the passphrase for my key and the document is decrypted.

I exit and reopen the shell and I’m able to replay the cmd WITHOUT entering the passphrase.

I can not figure out how to remove my passphrase from memory.

Any suggestions?

Also does it bother anyone else the CA for this website is not trusted ?

Thank you.