Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Pomoc přepytać

Hladajće so wobšudstwa pomocy. Njenamołwimy was ženje, telefonowe čisło zawołać, SMS pósłać abo wosobinske informacije přeradźić. Prošu zdźělće podhladnu aktiwitu z pomocu nastajenja „Znjewužiwanje zdźělić“.

Dalše informacije
Wočinjeny

encountering a message of "The installation seems to be incomplete.

mark.schneider

I am encountering a message of "The installation seems to be incomplete. Please check your hardware and disk setup and/or re-install." when trying to run Thunderbird.

This first occurred on a system that had been working for a while. An update may have been installed.

Here's what I've tried. -

Uninstall Thunderbird (along with Firefox and Mozilla Maintenance.) Checked for Program Files/Mozilla folder (all were removed). Run SFC / Scannow Run CHKDSK Installed pending Windows update. Restarted the System Renamed (essentially removed) Profiles folder Turned antivirus software off Downloaded and installed the latest version of Firefox, then Thunderbird. Launched Thunderbird. Still received the same error..

Any ideas on how to resolve the issue?

I am encountering a message of "The installation seems to be incomplete. Please check your hardware and disk setup and/or re-install." when trying to run Thunderbird. This first occurred on a system that had been working for a while. An update may have been installed. Here's what I've tried. - Uninstall Thunderbird (along with Firefox and Mozilla Maintenance.) Checked for Program Files/Mozilla folder (all were removed). Run SFC / Scannow Run CHKDSK Installed pending Windows update. Restarted the System Renamed (essentially removed) Profiles folder Turned antivirus software off Downloaded and installed the latest version of Firefox, then Thunderbird. Launched Thunderbird. Still received the same error.. Any ideas on how to resolve the issue?

Wšě wotmołwy (3)

This is not a solution, but I wanted to point out that the default install location for Thunderbird (64-bit) for Windows is

C:\Program Files\Mozilla Thunderbird

not

C:\Program Files/Mozilla

So, if I take your description literally, you may not have deleted all the leftover files from a previous Thunderbird installation.

Hi Lin - thanks for the note. I was trying to indicate that all of the Mozilla* folders were removed by the "uninstall" processes, including "Mozilla Thunderbird" and "Mozilla Firefox". I did not have to manually remove either one after the running through the uninstall procedures.

It may not be installed in the normal location, so you'd always need to determine where it's actually running from. But regardless, it should be sufficient to just (re)install.

Stajće prašenje

Dyrbiće so pola swojeho konta přizjewić, zo byšće na přinoški wotmołwił. Prošu stajće nowe prašenje, jeli hišće wužiwarske konto nimaće.