当サイトはユーザー体験を改善するためのメンテナンスを実施中に機能が制限される予定です。記事を読んでもあなたの問題が解決せず質問をしたい場合は、Twitter の @FirefoxSupport、Reddit の /r/firefox で、サポートコミュニティが皆さんを助けようと待機しています。

Avatar for Username

Mozilla サポートの検索

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.

詳しく学ぶ

このスレッドはアーカイブに保管されました。 必要であれば新たに質問してください。

After a major update to Windows 10 yesterday Firefox won't start with an error message about msvcp140.dll having an error. I reinstalled Firefox but it didn't f

  • 4 件の返信
  • 1 人がこの問題に困っています
  • 39 回表示
  • 最後の返信者: Paola Gatti

kemp.roger
kemp.roger
more options

After a major update to Windows 10 yesterday Firefox won't start with an error message about msvcp140.dll having an error. I reinstalled Firefox but it didn't fix it. Error status 0xc000012f.

After a major update to Windows 10 yesterday Firefox won't start with an error message about msvcp140.dll having an error. I reinstalled Firefox but it didn't fix it. Error status 0xc000012f.

選ばれた解決策

You can check if you only have one copy of msvcp140.dll and not possible older versions.

この回答をすべて読む 👍 1

すべての返信 (4)

FredMcD
FredMcD
more options

msvcp140.dll = Microsoft® Visual Studio

Run the Windows updater again.

Reboot the computer.

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

選ばれた解決策

You can check if you only have one copy of msvcp140.dll and not possible older versions.

kemp.roger
kemp.roger 質問者
more options

I had to download a new copy of the dll file and copy it over to System32 in Windows.

Paola Gatti
Paola Gatti
more options

kemp.roger said
I had to download a new copy of the dll file and copy it over to System32 in Windows.