C'est un common problème, usually due to poor logiciel like pilotes etc., il y a a few solutions disponible that often work:
First of all désactiver Sticky Keys: Windows-Paramètres → Accessibility → Clavier → Sticky clés:
(commonly, and par défaut, vous allez find that the Sticky Key paramètres in Windows 11 has the above options all activé)
When/si cela does continue, I recommend to try:
Essayez pressing Alt clé once and/or multiple times
Essayez pressing Ctrl + Alt + Del (ESC to exit the écran)
Essayez pressing FN Key
Essayez pressing combinations of Crtl/Alt/Shift/(FN) eg.g Crtl+Alt, Crtl+Alt+Shift, etc.
Temp., to see si cela has any effect, you could try to désactiver the Crtl Key (e.g. via Powertoys, SharpKeys, etc.).
Il y a different cases to this problème, mostly logiciel related e.g. when the système d'exploitation ne notice the release of a control clé. Par exemple, a badly written pilote for some matériel which causes a delay during which Windows skips the detection du release du clé. Ceci est usually rather hard to troubleshoot.
I would suggest updating starting avec pilotes and work your way up vers le logiciel your are using.
