Dear Sir or Madam, due to a mainboard crash of my old PC, I bought a new notebook which I'm using from now on. Yesterday I rescued all files from my old hard disks and have them now on my new notebook available. Thunderbird was for years my mail program, I want to use it still. I downloaded Thunderbird with the newest version and installed it. My old Thunderbird was not totally up-to-date. Thunderbird opened empty. I saw in the FAQ that the storage of the mails and configuration is at: C:\Users\USERNAME\AppData\Local\Thunderbird\Profiles I found two profiles folders on my recovered old hard disks: ktlh9o63.default rpq9cqul.default and copied them to the new installation folder. Opened up Thunderbird again. Nothing happened. I did create one mail account in the new Thunderbird installation showing now a new folder called: hvrfyymt.default-release I tried several things. Rename the above mentioned folders. Copying the subfolders to: hvrfyymt.default-release De-installed Thunderbird and Re-installed.. my old emails shows not up. No import function found. Help?? Thank you Wesker