https://winscp.net/eng/docs/config#export:

To export/back up your configuration, go to Tools > Export/Backup configuration on Login dialog.

In older versions of WinSCP, use Export button on Preferences dialog.

Hi,
I checked my WinSCP product installed, in Preferences, I see on Save option, save into register.
Therefore should I choose to export in an ini file or export the register key?
Thanks for your help.

So did you follow the link in the "computer is still running" section?
What is unclear about the instructions there?
https://winscp.net/eng/docs/config#transfer

Hello,
thanks for your answer.
I checked the link, but cannot understand it and also the actual machine is usable means I still work on it.
Thanks and hope I can receive help.

See How do I transfer my settings to another computer? How do I import/export my settings?

Hello,
I use WinSCP V5.19 under Windows 10, and have lot of connection defined.
I have to change my laptop and need to know if there is a way to transfer all existing configurations and parameters from my actual machine to a new one.
I have already downloaded the binaries files for the new installation.
Thanks in advance for your answers.