internat.exe is installed with Windows and is a process to provide Microsoft's multi-lingual features in Microsoft Windows. This process puts the language selection icon in the traybar. This program is important for the stable and secure running of your computer and should not be terminated.
2. Note: internat.exe could also be also a process which is registered as the Win32.Lydra.a information stealing Trojan. This Trojan allows attackers to access your computer, personal data and information. This process is a security risk and should be removed from your system.
Determining whether internat.exe is a virus or a legitimate Windows process depends on the directory location it executes or runs from. Where are you removing it from?
If it is malware, I am not allowed to advise you. Please ask in malware section.