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New Thunderbird version downloaded by Telstra. How can I retrieve lost Address Books and second email address?

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Connection to Thunderbird 'app failed because its side by side configuration is incorrect.' Told to 'See the application event log or use the command-line sxtrac.exe tool' for more information. Contacted Telstra.com.au who checked and downloaded latest Thunderbird version. I have lost all Address Books and my second email dw715937@gmail.com installed on my PC. Telstra advised my PC had been corrupted. Can you please help me retrieve the lost info? Many thanks, David Wilson

Connection to Thunderbird 'app failed because its side by side configuration is incorrect.' Told to 'See the application event log or use the command-line sxtrac.exe tool' for more information. Contacted Telstra.com.au who checked and downloaded latest Thunderbird version. I have lost all Address Books and my second email dw715937@gmail.com installed on my PC. Telstra advised my PC had been corrupted. Can you please help me retrieve the lost info? Many thanks, David Wilson

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I'm sorry to hear about the trouble you're facing. It sounds like the recent Thunderbird update might have caused some issues. To retrieve your lost Address Books and second email address, you can try a few steps. First, make sure Thunderbird is closed. Then, navigate to your Thunderbird profile folder. You can find this by going to "Help" > "Troubleshooting Information" in Thunderbird and clicking on "Show Folder" next to "Profile Directory." In the profile folder, look for "abook.mab" for your Address Books and "prefs.js" for your email settings. You might need to replace these files with your backups if you have them. As for the 'side by side configuration' error, try reinstalling Thunderbird or repairing the installation. If your PC was indeed corrupted, you might want to consider running a system check or getting professional help.