@Emmanuel-PIERRE said:

Hello today I see that in 8.9.6.4 on win11 the Ctrl is not working, though in all others app this is fine.

I have very few plugins in it (mime tools, npp converter, npp exports) so I guess this is not where it comes from.

Shortcuts are fine.

any idea ?

If you mean that the Ctrl key with a letter that isn’t a shortcut isn’t inserting the traditional control character, see Settings | Preferences… | Editing 2 | Prevent control character (C0 code) from typing into document and be sure it is not checked.

If you mean that Ctrl+drag on a selection is not working as it does in most Windows programs, that is a known peculiarity which can be resolved in either of two ways:

1. Press the mouse button down first, then the Ctrl key.
   or
2. Uncheck Settings | Preferences… | Editing 2 | Enable Multi-Editing (Ctrl+Mouse click/selection).

If neither of those is your problem, you’ll have to be more specific.

I don’t understand. What’s not working about the Ctrl key if it’s working with shortcuts?