restore WLM 2013 from copied files


New Email
Disc got corrupt. Data in ..\appdata\windows live mail was backupped. I reinstalled Windows 7 and created an account with the original credentials. Restored the data from the backup disk.
I can receive new mails, but I don't see my old data. I see a file account{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}.oeaccount and suppose that the original account had a different identifier. I see the inbox in the file system is properly populated. How to reconnect to this data?
Modifying the registry perhaps?