QuickBooks Error 1402
[Full Guide]


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There’s nothing like the panic that sets in when you get an error message on your computer. Especially when it’s a message that you don’t understand and seems to be preventing you from doing anything else. That was the case for Jane, who quickly Googled “QuickBooks Error 1402” to see if she could find a solution. But she could not find any viable solution as the updated solutions are necessary with the new existing errors. Today we are here with the latest solutions to help users like Jane and take all your troubles away in the easiest way possible.

QuickBooks Error 1402

No more pop-up error Error 1402: “Could not open key.” You just need to follow our lead and read the instructions carefully. By the end, you will be all set to be a QuickBooks pro with any kind of error popping up anytime. 

What is QuickBooks Error 1402?

QuickBooks error 1402 is the error that comes up when your computer is having installation issues with the software. Your system is unable to open the installation files of the software, and hence the error 1402 occurs. It can happen for various reasons, such as corrupted files, damaged QB files, corrupted payrolls, etc. However, all this will trouble you and your computer’s overall performance, which you are required to rectify as soon as you detect the issue. Otherwise, it can make your computer’s performance even worse.

Issues Related to QuickBooks Error 1402

Here we are going to discuss the issues that led to QuickBooks error code 1402:

  • If your Windows is not updated then it will create issues in downloading.
  • In case your framework of Microsoft.Net is corrupted then QuickBooks error 1402 will occur.
  • While getting this error it might be possible that your Keyboard and mouse will stop working.
  • Sometimes while installing you have opened other tabs in the background which is creating this error to occur.
  • You haven’t installed the latest version of QuickBooks Desktop.

What Methods You can Take to Prevent this Error 1402?

Before jumping into solutions let’s look at some points that can help you manage the issues that will appear in QBs software.

What Methods You can Take to Prevent this Error code 1402

  1. If possible try to delete trash files from time to time.
  2. Always keep an updated version of your QuickBooks Desktop
  3. Try to keep a backup of your files so that if they got deleted you will get them back.
  4. Don’t do anything during the process of installation.

Best Fixing Solutions to deal with the Issue QuickBooks Error 1402

Now, it’s time to look at the best solutions that help you to fix this issue and make your installation process of QBs error-free. So what are you waiting for? Let’s begin.

Solution 1: Open your PC in Selective Startup Mode

This method will help you to overcome the problem of installation as it will stop all other Windows running behind and creating trouble for you.

Open your PC in Selective Startup Mode

  • Tap on start and write MSConfig. in the Search box.
  • Then hit on the General option and choose Selective Startup.
  • After that select the Services tab and Hide all Microsoft service boxes.
  • Click on Disable and restart your system.
Read More - How to Troubleshoot QuickBooks Error 1904?

Solution 2: Upgrading Windows to the latest version

We all know that using the latest version of Windows will help you to not get QuickBooks error 1402 but also it will enhance your work and productivity.

Upgrading Windows to the latest version

  • Tap on the Start button from the bottom left corner.
  • Then click settings and choose Gear icon.
  • After that select the Update & Security option.
  • Before choosing Windows Update, wait for a few seconds and check for updates.
  • If there’s any new update available it will automatically download.

Solution 3: Install QuickBooks Diagnostic Tool

QuickBooks Diagnostic tool is one of the best solutions that one can use to make your installation process easy and error free. Just follow these simple steps to fix QuickBooks error 1402:

Install QuickBooks Diagnostic Tool

  • Firstly, go to the Official Website of QuickBooks.
  • Then start downloading the QuickBooks Diagnostic tool.
  • Wait for sometime till it gets downloaded and then an .exe file will open.
  • After that a pop of license agreement will appear on your screen.
  • Click on I agree to the terms and conditions.
  • Lastly, hit on Finish.

Solution 4: Restore QuickBooks Software

For this first, you need to uninstall your QuickBooks and then install QuickBooks software again because it might be possible due to other programs running in the background making it difficult to install. To do this carry out this procedure:

  • First, select the Control panel and then tap on Open.
  •  Click Add or Remove in the blank area.
  • After this click QuickBooks and hit on Uninstall.
  • At last, restart your PC and reinstall QuickBooks.


After examining the above-mentioned article we hope that all your doubts get cleared and now you will not face any issues. But in case you still have any queries or questions related to QuickBooks error 1402 please feel free to contact us. We are happy to help you 24×7.

Frequently Asked Questions (FAQs)

Q1. How to resolve unrecoverable errors in QuickBooks Desktop?

Answer – Follow these steps to resolve QBs unrecoverable error:

  • Step 1: Just stop QuickBooks Desktop from opening.
  • Step 2: Recognize the number of users affected.
  • Step 3:  Paste the company file to your Desktop.
  • Step 4: Put an end to QuickBooks Desktop.
  • Step 5: open a company file for assistance.

Q2. How do I update QBs Desktop remotely?

Answer – Here are the steps that you should follow:

  • Turn Off your company files and QBs.
  • Then click the Windows Start option and find QuickBooks Desktop.
  • After that tap on the Help option and choose Update QuickBooks Desktop.
  • Select Options and go to Update Now.
  • Lastly, Reset Update checkbox.

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