I've tried:
~/.ssh/config
User myusername
and
Host *
User myusername
And
Putty > Connection > Data > Auto-login username
myusername
And even setting the value in the registry
Seems to work fine on Windows 10 with the .ssh/config
Ah, I had User myusername
in ~/.ssh/config.txt
instead of ~/.ssh/config
and didn't realize it because Windows hides extensions by default. Renaming the file to config
made it work.
I set the private key information via Putty SSh Connection Auth
that was gen'd