Learn how to fix Error 1334 when you install, update, or repair QuickBooks Desktop.
Error 1334 is usually caused by a missing or damaged QuickBooks Desktop installation file or a damaged .NET Framework. We’ll show you how to fix it.
If you get the error when you try to update or repair QuickBooks
You'll need to reinstall QuickBooks Desktop.
If you get the error when you try to install QuickBooks
You'll need to repair or reinstall Microsoft .NET Framework.