annoying pop up

Hi just installed winSCP after using CoreFTP for a long time (ftpLE for years before that). Very impressed so far, looks like I've found my new FTP program.

Only one annoyance I can't seem to get rid of. When I transfer a file, a popup box briefly flashes up as the file transfer completes. I'd prefer to not see this. I can show the queue if I need to monitor a large transfer but as I'm a webdev the files are tiny and the box only flashes for a second.

I saw this post https://winscp.net/forum/viewtopic.php?t=4228 on I think the same issue but have no idea what /defaults is or if the issue was resolved.

I'm using version 5.5.3

Can you be a more specific about the popup? A screenshot maybe?

Bte, the /defaults is irrelevant to this.

Thanks for the reply. screenshot attached

OK, so that's normal file transfer progress window. You cannot turn that off. But you can configure WinSCP to always upload files on background. That way you do not get the progress window.
See Transfer on background by default:
https://winscp.net/eng/docs/ui_pref_background

Thanks prikery for providing such useful information.

Thanks for the help.