Disable automatic doubling of quotes in Notepad++

You may have two issues going on - the keyboard setting causing you to have to enter it twice, and/or the settings issue in Notepad++.

For those ONLY seeing this problem in Notepadd++, it is under Settings-->Auto-Completion "Auto-Insert" (box, midscreen,) and check or uncheck the box by " ".

Notepad++ has a setting that controls the auto-completion behavior.

Settings -> Preferences -> Auto-Completion ->Auto-Insert

Edit:

Your requirement:

We need to type quotes twice for them to appear and when they do appear, there are two of them.

This behavior is controlled by Keyboard language settings in Control Panel. Go to

Control Panel -> Regional and Language -> Keyboards and Languages

and select a keyboard language which requires typing twice before quotes appear.