Thunderbird 78.6.1 can not be started - former installation is not installed properly
On a seldom used PC i cannot start thunderbird. If trying to update i get the message, that update is not possible cause a former update is not installed ready. New start and all other tried before is no solution. Deinstallation of thunderbird is also not possible with same reason.
Tất cả các câu trả lời (1)
re :Deinstallation of thunderbird is also not possible
Exit Thunderbird. Thunderbird is usually installed in: C:/ Program Files (x86)/Mozilla Thunderbird So you could just delete all the files and folders which are in the 'Mozilla Thunderbird' folder.
Try to download and install the same version 78.6.1 http://ftp.mozilla.org/pub/thunderbird/releases/78.6.1/
If using Windows 32bit then select win32 If using Windows 64bit then select win64
then choose the language Click on the 'Thunderbird Setup 78.6.1.exe ' link to get download. It may get automatically downloaded to your 'downloads' folder Click on it to run.
Make sure to install in same location.
I suggest you create a backup of the Profile before you try to upgrade to version 91.1.2 http://ftp.mozilla.org/pub/thunderbird/releases/91.1.2/
Ext Thunderbird and then access the following location. Use image below as guide. Backup is usually here: C:Users/User Account /Appdata/Roaming/Thunderbird Copy the Thunderbird folder to an external hardrive.
