Opening session - double click on associated file - opens 2 NPP windows

[Furatus777]

How can I avoid it?

Thanks!

[PeterJones]

@Furatus777 said in Opening session - double click on associated file - opens 2 NPP windows:

How can I avoid it?

You might be looking for: Settings > Preferences > Multi-Instance = Default (mono-instance)

Then again, if you have an association for session files, it might be calling notepad++ with the -multiInst command-line option, which overrides the Preferences. You’d have to check your Windows registry to fix that.