

In this tutorial that is based for the 64 bits users but could be adapted for 32 bits users, I will be attempting to fix your MAPI / Send to -> Mail recipient and send to from external program issue that you may experience in Windows 7, 8, 8.1 or 10 when you use windows with no other mail client than Thunderbird, and that you may (or not) have installed both x86 and 圆4 version.


This is a blunt straight through tutorial, some steps may or not be necessary, but the goal is to fix it all if possible with one procedure, so read the tutorial completly to understand what we start with, what we end with, etc. While following the procedure, DO NOT DELETE OR MOVE files located in your profile, these are your settings, emails, etc. Usually located at %appdata%\Thunderbird. Optionally, you could make a copy of that directory to have a backup of your profile before we start. Now let's start by cleaning up the bird cage: Download the lastest version of Thunderbird x86 and 圆4 version.Install Thunderbird 64 bits, with all default, then Uninstall it, using the control panel.Install Thunderbird 32 bits, with all default, then Uninstall it, using the control panel.Check out C:\Program Files and C:\Program Files (x86), and make sure there is no more Thunderbird directory.Check out the following registry Key: Computer\HKEY_CURRENT_USER\Software\Thunderbird\Launcher it will displayĭifferent path to check out for remaining thunderbird files, if it was installed by example, on a local profile instead than inside Program Files directories.

