Hi, thanks for reaching out. I understand how important it is to work in your preferred language, especially when switching between environments like Parallels and Windows.
What’s happening here is likely tied to how Windows 11 handles system locale and display language settings inside a virtual machine. Even though FRA or DEU are installed, the system may still default back to ITA due to either the system locale mismatch or leftover language packs that override your preference.
To fix this, start your Windows 11 VM, go to Settings then go to Time & Language then click Language & Region, then scroll down and click Administrative Language Settings. In the new window, check if the system locale matches your preferred display language, if not, click Change system locale, select the correct one, and reboot. Also, remove any unused language packs except the one you want to use, then restart again to apply changes fully.
Just to clarify, are you using the ARM version of Windows 11, and did you install it with Italian as the default language initially? That can help confirm if we need to dig deeper into the system files or update behavior.
Let me know how it goes after trying those steps, and I’ll guide you further if needed.