ssh-agent disabled
"No such file or directory" errors usually indicate the SSH agent service isn't running:
> ssh-add -l
Error connecting to agent: No such file or directory
Try starting the service:
ssh-agent
If you receive an error like the following:
> ssh-agent
unable to start ssh-agent service, error :1058
It usually indicates that the SSH agent service can't start as it has been disabled, likely by a recent Windows update. To correct this, change its startup type from an elevated shell:
Set-Service -Name ssh-agent -StartupType Automatic