Hello, My name is Alex and i have a very bad situation: I have 21gb of emails saved in my computer. I have 2 backups. I reinstall the windows from win10 to win7. And i did the ordinary settings. When i trying to open the folder mail.example.... thunderbird make the action, restarts need and after when i open my email is nothing there. But i dont hnow why the backup is half deleted. From 21gb i have 12. Can you help me please? I have the second backup .. and i will make also the third to be sure. I tryed to instal an older version but still not working. Tank you in advance.