Error 1334

Which QB Desktop year version?

I appreciate you taking the time to express your concerns, @James561. Let's ensure you'll be able to fix the error 1334 in QuickBooks Desktop (QBDT).

To begin with, error 1334 is caused by a missing or damaged QBDT installation file or a .NET framework. To resolve this, you'll need to repair or reinstall the Microsoft .NET framework.

Here's how:

1. Close all open programs.
2. Open the Windows Start menu.
3. Enter Control Panel into the search box and open Control Panel.
4. Go to Programs and Features.
5. Click Uninstall a Program.
6. Select Turn Windows features on or off.
7. Find .NET Framework on the list, then check the settings for both .NET Framework 4.5 (or later) and .NET Framework 3.5 SP1.

For more detailed information, you can check this article: Manually fix Microsoft .NET Framework errors.

After installing, QBDT will prompt you to activate. Here's an article to help you: Activate QuickBooks Desktop for Windows.

If you have any concerns about the error 1334, please tag me in the comment section, @James561. I'll assist you in any way possible.

Thank you.  I am trying to install my QuickBooks Pro 2009 on my new windows11 computer

QuickBooks Pro 2009

@James561 

Your version is too old. Try to reinstall it in Vista or Win 7 compatibility mode. If the same error message persists, consider to upgrade your version to a newer version with a non subscription license.