QuickBooks is a powerful accounting software but there can be situations when you can face several errors and issues in this software as well. QuickBooks has various categories and a series of errors that can occur at different times and situations. Installation errors in QuickBooks is one of the categories that basically restricts you from installing or updating QuickBooks Desktop on your system. QuickBooks Error 1638 is one such error that occurs while installing QuickBooks and shows you the following error message:

Error 1638: Another version of this product is already installed

Error 1638: Another Version Of This Product Is Already Installed

This error can be very frustrating for you as it can put your work on a halt. However, if you are also going through this error and you want it to get removed, you can perform the steps provided in this article. The steps provided in this article will allow you to resolve the error code 1638 and you will be able to work on your QuickBooks software.

What Causes The Error Code 1638?

Main causes of QuickBooks Error 1638 are as given below:

  • You are not following appropriate guidelines to install QuickBooks.
  • There already an installation of QuickBooks Desktop on your system.
  • The installation source you are using is damaged.
  • Firewall settings are not allowing you to install QuickBooks.
  • Virus or malware infection is causing the error.

How To Resolve QuickBooks Error 1638?

The error code 1638 is an installation error but it can also occur due to some damaged Microsoft components. In such situations, you can use the QuickBooks Install Diagnostic Tool that allows you to tackle Microsoft Components and other installation issues in QuickBooks. If the error is still around, you need to perform the steps mentioned below:

Step 1:  Locate your QuickBooks version

  • Open the Run command by pressing the Windows + R
  • In the search field, type Control Panel and hit Enter.
  • Go to Programs and Features If your Control Panel is in Category View, click on Uninstall a Program.
  • Now, from the installed programs list, locate and click on the QuickBooks version which is already present.
  • If it is in the list, open the program.

Step 2: Open the program

  • From the Start menu, go to All Programs > QuickBooks.
  • Select the appropriate version of QuickBooks.

If QuickBooks won’t open:

Solution 1: Repair QuickBooks by following below steps:

  • In the search field, type Control Panel and hit Enter.
  • Go to Programs and Features If your Control Panel is in Category View, click on Uninstall a Program.
  • Now, from the installed programs list, locate QuickBooks and click on Uninstall.
  • On the installation wizard, you have two options, Uninstall and Click on Repair.
  • Follow the onscreen prompts and at last, click on Finish.

Solution 2: Perform a clean installation of QuickBooks Desktop. If that doesn’t work, install QuickBooks in selective startup mode.

Follow The Steps Carefully or Contact Our ProAdvisors

Technical Support For QuickBooks Desktop

The provided solutions should be helpful for you in resolving the QuickBooks Error 1638 and you should now be able to install QuickBooks Error Code 1638. However, there can be situations when you may not be able to resolve this error because there are some serious issues with your Windows OS. In such cases, you can contact us at our toll-free QuickBooks Support Phone Number +1800-567-0425 and get your issues resolved.

Error 1638: Another Version Of This Product Is Already Installed

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