windows 8 is bocked by Grimefighter(key arobase)

Hello
I just installed the new version of avast premier for Windows 8 with grimefighter paid.
But I wanted to run for the first time Grimefighter, and Grimefighter blocks boot windows 8 because the key does not work at sign @ to enter login email address.
So everything is blocked at startup with the home screen grimefighter.
I have tried different key combinations
Alt Gr + @
Ctrl + Alt + @
Alt + 64

What should I do?
thank you

Bonjour
Je viens d’installer la nouvelle version d’avast payante pour Windows 8 avec grimefighter payé.
Mais j’ai voulu faire fonctionner pour la première fois Grimefighter et Grimefighter bloque demarrage windows 8 car la touche d’arobase est inopérante pour entrer adresse email de connexion.
Donc tout est bloqué au démarrage avec l’écran d’accueil de grimefighter.
J’ai différentes combinaisons de touche
Alt Gr+@
Ctrl+Alt+@
Alt+64

Que dois je faire?
merci

This section of this forum is only English. For different language use this section https://forum.avast.com/index.php?board=21.0

Sorry!
hello
I just installed the new version of avast premier for Windows 8 with grimefighter paid.
But I wanted to run for the first time Grimefighter, and Grimefighter blocks boot windows 8 because the key does not work at sign @ to enter login email address.
So everything is blocked at startup with the home screen grimefighter.
I have tried different key combinations
Alt Gr + @
Ctrl + Alt + @
Alt + 64

What should I do?
thank you

https://forum.avast.com/index.php?board=63.0