I started developing on my Windows 10 PC again and because I'm a linux guy, I stumbled upon signing git commits.
I installed GPG4Win and imported my private key, but when signing off commits, I received this garbage message:
gpg: skipped "name <firstname.lastname@example.org>": secret key not available gpg: signing failed: secret key not available error: gpg failed to sign the data fatal: failed to write commit object
Simple fix was telling git which app to use for signing off commits:
git config --global gpg.program "C:\Program Files (x86)\GnuPG\bin\gpg.exe"