How to export Windows 7 Outlook 2007 pst files to Windows 11 Thunderbird?
11-14-25 I have a Dell Precision M6700 laptop running Outlook 2007 under Windows 7 64 bit Pro. I have a Dell Precision 7720 laptop running Thunderbird under Windows 11 64 bit Pro. So far I have been unable to export the Outlook.pst file from the M6700 and import it into the 7720. I have tried to find a free version of a pst to eml converter, but the free (or trial) versions only seem to convert a few files in each folder. So assuming pst to eml conversion is the first step, I need recommendations for reliable but reasonably priced conversion utilities so that I can export the files from Outlook 2007.
I have tried to import converted eml files into Thunderbird, but the Thunderbird import software seems to be looking mainly for a profile which I don't know where to find. And besides, it appears that Thunderbird is designed to do the export/import operations on the same computer, not two computers as in my case. Anyway, I get an error no matter what I try. If someone has insight into these various steps, I would greatly appreciate some help. Thanks!
Regards, Dave
All Replies (2)
I am not the guru on this, having only slght knowledge. What I do know is that Thunderbird expect to see the Outlook account on the same computer. So, while I cannot advise further, I believe you need to set up Thunderbird on the M6700 PC and then try again.
11-17-25 david,
Thank you for your help! I did reset up Thunderbird on the M6700: I say reset up because I installed it in 2015 when I acquired the M6700, but have never used it. Help/About indicates that it is Tb Version 38.3.0, and is up to date. I was able to import Outlook files into Thunderbird without trouble, except that the import utility found Outlook Express files, not Outlook files, and there was no way to browse for different files. What the program imported were files as they existed in 2015, not current Outlook 2007 files. The Outlook Express files were on the computer that went bad that was replaced by the M6700, and which I was able to retrieve off of the hard drive that I removed from the dead computer.
Anyway, all of this has led me tho think that the way forward is to get a copy of PCmover, or other file transfer program to move Outlook 2007 from the M6700 to the 7720. If it will run under Windows 11, then hopefully Thunderbird 144.0.1 on the 7720 will be able to import something like 1.7 Gb of date from Outlook, which is the size of the outlook.pst file. If not, then I will be back at square one.
Again, thanks for your help. Regards, Dave
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