QuickBooks Error 1402 is an error that is encountered by users if the software is not installed properly or has other installation issues. It can also occur if you try to operate a corrupted payroll in Windows or QuickBooks MAC OS X operating system. Like error 1402, sometimes similar issues might be seen when QuickBooks needs any component to run but is missing or unavailable due to damaged Windows files. QuickBooks error 1402 occurs, it appears with a warning message on the screen: Couldn't Open Key. Well, we have curated this segment for you to overcome this issue. So, stay in this segment till the end. For more such queries you can contact our expert CPAs to assist you. To contact our experts, dial our hotline a +1-844-499-6700.

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What are the causes of QuickBooks Error 1402?

Here is a list of the causes hat can trigger this issue.

  • If the QuickBooks installation becomes corrupted on your system.
  • Another reason may be that the CD used for installation does not work.
  • Such errors can also be caused by improper installation of software.
  • Such errors can also occur if Microsoft Windows is not updated.

Solution to Troubleshoot QuickBooks Error Code 1402

We have curated a few solutions with our industry experts to help you overcome this issue. Let's go through them:

Method 1: Verify that Microsoft.NET Framework is enabled.

  • First, open the Control Panel and go to Programs and Features.
  • Once that is complete, select Uninstall a program.
  • You must also select the option Turn Windows features on or off.
  • The next step is to find .NET Framework in the list.

  • And please check and enable .NET Framework 4.5 or later.
  • The final step is to click the OK tab to save changes and restart the system.

Method 2: Add QuickBooks to the Bitdefender exclusion list

Please note that this method can be implemented by users who have the Bitdefender program, so it may not be suitable for all users. If you are using it, take the appropriate steps to disable it and add his QuickBooks to Bitdefender's exclusion list.

  • For 32-bit Windows operating systems, you must add C: \Program Files\Common Files to the exclusion list.
  • However, for 64-bit Windows operating systems, add C: \Program Files\Intuit (C: \Program Files (x86)\Intuit) to the exclusion list.


We hope that after reading the above blog, all your doubts will be cleared and you will not face any problems in the future. Fixing error 1402 in QuickBooks may require multiple attempts and Windows operating system expertise. However, if the error occurs again after performing all troubleshooting steps, we recommend contacting support. If you have any problems, please call our our technical support team +1-844-499-6700. Our certified QuickBooks ProAdvisors will answer all your questions instantly.