This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

My Thunderbird won't load after a problem with Windows not starting properly. Thunderbird is still there as a programme in my computer.

  • 1 reply
  • 1 has this problem
  • 3 views
  • Last reply by Wayne Mery

ThroughTheirEyes
ThroughTheirEyes
more options

I have version 38.2 and after Windows not starting up properly but with no reasons discovered, Thunderbird will not start up. Error message is

C://Program Files (x86)/Mozilla Thunderbird/MSVCP120.dll is either not designed to run on Windows or it contains an error.

Should I uninstall and reinstall Thunderbird. Will I lose my contacts? Will I have to set up all my email accounts again?

Thanks.

I have version 38.2 and after Windows not starting up properly but with no reasons discovered, Thunderbird will not start up. Error message is C://Program Files (x86)/Mozilla Thunderbird/MSVCP120.dll is either not designed to run on Windows or it contains an error. Should I uninstall and reinstall Thunderbird. Will I lose my contacts? Will I have to set up all my email accounts again? Thanks.

All Replies (1)

Wayne Mery
Wayne Mery
  • Moderator
  • Top 10 Contributor
more options

ThroughTheirEyes said

I have version 38.2 and after Windows not starting up properly but with no reasons discovered, Thunderbird will not start up. Error message is C://Program Files (x86)/Mozilla Thunderbird/MSVCP120.dll is either not designed to run on Windows or it contains an error. Should I uninstall and reinstall Thunderbird.

yes http://getthunderbird.com/

Will I lose my contacts? Will I have to set up all my email accounts again?

depends on what got borked already. But just reinstalling Thunderbird won't cause a problem.