How to Fix QuickBooks Error 1402

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QuickBooks is accounting software that has all the features like payroll, tax filing, invoicing, bank account tracking and reconciling, business and financial management suits with complete tools for accounting, budgeting, payments process, etc. This is the most popular accounting software introduced by Intuit. However, this tool also gives you some errors while working on it and will interrupt you by appearing again and again. In this article, we discuss how to fix QuickBooks Error 1402 and its causes. To resolve this issue read this post till the end and follow all the steps correctly. 


This is an installation error that comes when the problem appears during the installation process. QuickBooks Desktop Error 1402 occurs when an incomplete installation comes due to the missing essential components that lead to QuickBooks Error 1402. When this error appears on your system then you may receive an error message which says “couldn’t open key”. 

Causes of QuickBooks Error 1402

Below is the list of the reasons that lead to the QuickBooks Error 1409 and help you to identify this error:-

  • When the Installation of QuickBooks file is corrupted and damaged. 
  • While installing from the CD and the CD is damaged then this error will occur on your screen. 
  • The installation process is incomplete and inappropriate. 
  • When the windows are not updated with the latest released versions. 

Ways to prevent Error 1402

Before resolving the QuickBooks Error 1402, it is important to take some necessary steps to prevent it from coming again:-

  • Make sure to backup all the data frequently. 
  • Don’t interrupt software in between the installation process, even it takes more time to complete the process more than you expected. 
  • If mistakenly interrupted then make sure that all the junk files are properly deleted and then reinstall QuickBooks again. 
  • The user has to update the software regularly with the latest version released of QuickBooks. 

Methods to Resolve Error 1402

Follow all the troubleshooting methods to resolve the QuickBooks Error 1402 an installation error that can be resolved by the below-mentioned steps:-

Method 1- Install and Run QuickBooks Install Diagnostic Tool with QuickBooks Tool Hub

  • Initially, close the QuickBooks Software. 
  • Then, download the QuickBooks tool hub’s latest version. And save where you can easily access it. If you already have this tool then make sure that you have the latest version of this tool on your system. 
  • Then, open the downloaded file. 
  • Now, you have to agree to all the terms and conditions to install the software. 
  • Select installation issues when opening the QuickBooks Tool Hub
  • And select the QuickBooks Connection Diagnostic Tool and this will fix the issues. 


  • From the official website of Intuit, you can download the QuickBooks Install Diagnostic Tool. 
  • And close all the other running programs in the background.
  • Now run the QuickBooks Connection Diagnostic tool. The process duration will depend on the speed of the internet connection. 
  • At last, when the process is complete then you have to restart your computer. 

Method 2- MS Windows update and install 

The installation error may be fixed by QuickBooks Update and installing the missing updated. 

  • Go to the start button on the windows icon. 
  • Then, search and click on the Check for Updates.  
  • If there is any pending update will available then you have to install all the pending updates. 
  • At last, restart your system for changes to make. 

Method 3- QuickBooks Desktop Reinstall

Error 1402 appears on your screen due to the wide range of options and impact the productivity. 

  • Go to the start button and click on it. 
  • Search for the control panel. 
  • When the control panel opens then click on the programs and features tab. 
  • Then, move to the ‘Add or Remove Programs’ tab. 
  • Now, search for QuickBooks and click on the uninstall option. 
  • At last, reboot your system and then you have to reinstall the QuickBooks Desktop. 

Method 4- Adobe Flash Player Uninstall and Reinstall

  • Firstly, download and run the install diagnostic tool. 
  • Go to the start button. 
  • On the search bar enter the Control panel and open it. 
  • Then go to the uninstall a program option. 
  • Now, search for the Adobe flash player ActiveX in the list. 
  • Select the uninstall option. 
  • Then, instructions will appear on your screen and complete the uninstallation process. 
  • At last, download and reinstall the Adobe flash player.

Method 5- On Bitdefender list Add QuickBooks

This method is not mandatory for all, it can only apply to the user of Bitdefender. If you are using Bitdefender then you can’t fix these issues by just disabling it. This is required to add the QuickBooks in the Bitdefender exclusion lists. 

  • For 32-bit Windows OS- you put C:\Program Files\ Common files in the exclusion lists. 
  • And for the 64-bit Windows OS- you put C:\Program Files\ Intuit (C:\Program files (x86)\ Intuit) in the exclusion list. 

Method 6- Selective Startup Mode

If you use the selective startup mode then you may get rid of this QuickBooks Error 1402. This error can occur due to the third-party application blocking the installation. If you want then you can opt for the selective startup mode and try to resolve the error. Below are the steps mentioned:-

Step 1- Data Preparation
  • In this step, you have to take a backup of the company files. 
  • Then, save the copy of the QuickBooks Desktop product and license information. 
Step 2- Start your system on selective startup mode
  • Open the Run window by pressing and holding the Windows+R key together. 
  • Now, type msconfig on the windows. 
  • Then, in general tab select the selective startup and also opt and load system services. 
  • Now, go to the service tab and select ‘hide all Microsoft services’. 
  • At last, select the ‘disable all’ option.
Step 3- In the Hide all Microsoft services checkbox uncheck it
  • Firstly, make sure that the windows installer checkbox is selected. If not, then select it. 
  • Click on the OK tab and then restart on system configuration windows. 
Step 4- Switch to Normal Startup Mode
  • Open the run windows and then type msconfig on it. 
  • Then, in the general tab select the normal startup and click on OK. 
  • Lastly, reboot on system configuration windows. 


In this article, we discuss how to fix QuickBooks Error 1402. I hope all these steps will be helpful and useful for you to resolve this error from your system. If you have any other issue then you can visit our other articles also.