Resolve QuickBooks Error 1638 (Another Version Of This Product Is Already Installed)

There are multiple kinds of installation errors that come out during working with QuickBooks Desktop. Most of the time you’ll face QuickBooks error 1638 with an error message specifying “Another version of this product is already installed”. Installation error is nothing but it prevents you from performing installation or updating the QuickBooks Desktop for Windows. Furthermore, always go for the most recent updates only on Intuit’s official site otherwise due to installing or updating the inappropriate version of QuickBooks you’re in contact with other technical errors that take place at any time. 

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Resolving error 1638 in QuickBooks is very tiresome and annoying, but don’t worry, we have some simple steps that we have discussed to help you with your concern. Although, following the below steps consecutively only if you’re run into this error. If you’re facing QB error 1638 as well as other installation errors such as QuickBooks error 1402, QB error 3140, QB error 1712, etc. Go and check now, we have separate articles about it. 

Why QuickBooks Error Code 1638 Prompts

We have figure out some common reasons due to which error prompts just check out from the below section:

  • Installation of QuickBooks Desktop with against of Intuit guidelines
  • Having more than one QuickBooks version on the same PC
  • The site you prefer to install QuickBooks is a third party site rather than Intuit
  • Installation source is not appropriately specified or might be damaged
  • Virus or Malware infections causes errors
  • Firewall settings or other security application blocks installation 

How to Resolve Error 1638 in QuickBooks

To resolve the QuickBooks installation error 1638, Intuit advised to download or install the QuickBooks tool hub for using QuickBooks Connection Diagnostic tool for diagnosing and rectifying the QB technical errors. This tool enables users to equip Microsoft components and other QB installation issues entirely. If these instructions will not take effect on your issue then start following the below steps:

Step 1: Go and Find your QuickBooks Version

  • Open the Run Command by pressing two shortcut keys together (Windows + R ) 
  • This will open a Search wizard where manually type Control Panel and then hit Enter button
  • If you’re viewing your Control Panel in a Category then choose program and features
  • Later on, click on Uninstall a Program 
  • You’ll see a list of installed programs having your PC, where scroll down to the QuickBooks and then open it

Step 2: Open the Program

  • Press Windows Key to open the Start menu 
  • Click on All Programs where choose QuickBooks
  • Choose the relevant version of QuickBooks you want to do work 

What to do when QuickBooks has stopped working, or won’t open

If you fall under the situation when QuickBooks won’t open then check the below solutions to get rid of this error.

Solution 1: Repairing QuickBooks Application

  • Open the Search Wizard where manually type Control panel and then tap on Enter button
  • If you’re viewing your Control Panel in a Category then choose program and features
  • Later on, click on Uninstall a Program 
  • You’ll see a list of installed programs having your PC, where scroll down to the QuickBooks and then click on Uninstall
  • An installation window will give you two choices, where simply click on Uninstall and then Repair by staying inside the same window
  • Follow the on-screen instructions by clicking on Next unless the Finish message prompts
  • Click on Finish to end it

Solution 2: Uninstall and Reinstall QuickBooks software with a Clean Install. If it fails to work then Install QuickBooks in a selective mode

If both will not take effect on the problem then use a separate directory folder by navigating to a different location. In case of getting a Windows installer error and you’re no longer able to uninstall or reinstall QuickBooks, at that moment you can take help from IT professionals or Microsoft to fix the registry entry problems for the Windows Installer. 

You would like to read: How To Fix QuickBooks Error: Your System has only xxxMB Of Free Memory

The Bottom Line

Hope you are successful to troubleshoot QuickBooks error 1638. But if you’re seeking technical assistance for fixing this problem, you can get advice and recommendations from our QuickBooks ProAdvisor by dropping a call on our helpline number. Avail to our services round the clock by getting in touch with us. For collective details and depth knowledge, be a part of our QuickBooks community across the globe. Sometimes problems may arise due to a stable internet connection, so check your internet connection first after moving further. 

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