Fixed: Sage 50 Error 1639

Sage 50 is accounting software used by businesses of all sizes. It is a powerful tool that can help manage finances, but it is not without its errors. One such error is Error 1639, which can occur when trying to update the software. Error 1639 is a pretty common error, but luckily there are a few things you can do to try and fix it. In this blog post, we will go over some of the potential causes of Error 1639 and how to fix it.

If you are facing the Sage 50 Error 1639, it is most likely because the Windows Installer is not correctly configured on your computer. This can happen for a variety of reasons, but the most common cause is that the Windows Installer service is not running.To fix this problem, you need to first ensure that the Windows Installer service is running. To do this, go to Start > Run, type “services.msc” and hit Enter. This will open the Services console. Locate the “Windows Installer” service and make sure that it is set to “Automatic” startup type and that it is currently running. If it is not running, start it by clicking on the “Start” button.Once the Windows Installer service is up and running, try installing Sage 50 again. If you still encounter the error, there may be some corruption in the Windows Registry. To fix this, you will need to run a registry cleaner tool to repair any damaged or corrupted registry keys.

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What is Sage 50 Error 1639?

Sage 50 Error 1639 is a common error that occurs when trying to install or update the Sage 50 accounting software. The error is typically caused by a corrupt or incomplete installation file, and can be fixed by downloading and installing the latest version of the software from the Sage website.

How to Fix Sage 50 Error 1639

If you’re getting the Sage 50 Error 1639, it’s usually because the Product Code is incorrect. Here’s how to fix it:

  1. Go to Help > About.
  2. Enter the correct Product Code in the text field.
  3. Click OK and restart Sage 50.

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Tips to Prevent Sage 50 Error 1639

If you’re experiencing the Sage 50 Error 1639, there are a few things you can do to try and prevent it. First, make sure that you have the latest version of Sage 50 installed. If you don’t, you can download it from the Sage website.

Second, run a full system scan to check for any malware or viruses that could be causing the error. You can use a free tool like Malwarebytes to do this.

Finally, if you’re still getting the error, you can try manually repairing your registry. This is a bit more advanced and should only be attempted if you’re comfortable working with your computer’s registry.


If you’re experiencing the Sage 50 Error 1639, don’t worry — it’s an easy fix. Simply follow the instructions in this article and you’ll be up and running in no time. As always, if you have any questions or need any help, feel free to reach out to our support team for assistance.

If you encounter the Sage 50 Error 1639, it is likely because you are trying to open a company file that is already open in another session. To resolve this error, you will need to close the company file in the other session and try opening it again.If you continue to encounter the Sage 50 Error 1639, it is possible that the company file is damaged. In this case, you will need to restore a backup of the file. If you do not have a backup available, you can try repairing the file using the Sage 50 File Repair Tool.

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