Backup, clear, restore WinSCP profiles

Backup all profiles for current user:

reg export "HKCU\Software\Martin Prikryl" "%userprofile%\Desktop\winscp.reg.log"

This will automatically create a log file on your desktop which is saved to upload in email and send to other people:

Clear all configuration:

reg delete "HKCU\Software\Martin Prikryl" /f

Restore all profiles:

reg import "%userprofile%\Desktop\winscp.reg.log"

P.S. All commands need to be run with simple user permissions.