fix: The installer has encountered an unexpected error installing this package. This may indicate a problem with this package. The error code is 2503.

I am trying to install a downloaded program (Smartscore by Musitek).  Every time I get the following message: 

The installer has encountered an unexpected error installing this package. This may indicate a problem with this package. The error code is 2503.

 

Question Info


Last updated February 21, 2020 Views 27,480 Applies to:

 

Hi Adrian,

 

 

Welcome to Microsoft Community. We are here to assist you will all your Windows related issues and queries.

 

You have mentioned that you are unable to install the program named “Smartscore” by Musitek which you have downloaded as you are getting the error: “The installer has encountered an unexpected error installing this package. This may indicate a problem with this package.” and the error code shown is “2503”. I would like to have some information regarding this error:

 

1.       When exactly are you getting this error? Is it when you try to open the program setup file which you have downloaded or is it in between the installation of the package?

 

2.       Have you made any recent changes on the computer prior to this issue?

 

3.       Did you try any troubleshooting steps for this issue?

 

4.       Do you have any third party security program installed on the computer?

 

This might be either due to some issues with the Windows Installer service or it might be an issue with the package that you have downloaded. So, I would suggest you to try downloading the package again and then try installing it.

 

This might also happen, if the downloaded file is corrupted due to some malicious software infection in the computer.

 

Let’s try some troubleshooting steps and check if that helps:

 

Method 1: Check the Windows Installer Service and also unregister and re-register the Windows Installer

 

Step 1: Check the Windows Installer Service

 

a)       Press “Windows Logo” + “R” and type “service.msc”

 

b)       In the “Service” window scroll down and find the “Windows Installer” service. Double-click “Windows Installer” in the Services list to open its properties window.

 

c)       On the “General” tab, make sure the service is started under “Service status”.

 

d)       If the service was stopped, under “Service status”, then start the service by clicking on the “Start” button, and then click “OK”.

 

 

Step 2: Unregister and re-register the Windows Installer

 

a)       Press “Windows Logo” + “R” to open the Run Command Window.

 

b)       In the run command window type the following command and click on “Ok”.

 

 

MSIEXEC /UNREGISTER

 

 

c)       Press “Windows Logo” + “R” to open the Run Command Window again.

 

d)       In the run command window type the following command and click on “Ok”.

 

 

MSIEXEC /REGSERVER

 

 

e)       Now, try installing the package again and check.

 

 

Method 2: Perform a Clean Boot and find out which application/service is causing this issue.

 

A clean boot helps to eliminate software conflicts and to determine what is causing the problem. Perform a clean boot on the computer by following the steps given in the link:

 

http://support.microsoft.com/kb/929135

 

Follow all the steps given in this link and try to figure out the application or service causing this issue.

 

Note: After you have finished troubleshooting, refer the article “How to reset the computer to start as usual after troubleshooting with clean boot” for Windows 8, given under the section “More Information” to reset the computer to start as usual from the above link.

 

Let’s also check if the computer is infected by any malicious software infections by running the Microsoft Safety Scanner.

 

 

Method 3: Run Microsoft Safety Scanner and check if there are any infections in the computer.

 

I would also suggest you to check if the computer is infected by any malicious software. For this let’s try running the Microsoft Safety Scanner and then check the issue. You can download and run the Safety Scanner from this link:

 

http://www.microsoft.com/security/scanner/en-us/default.aspx

 

Note: When running a scan using an Anti Virus program, any data files that are infected may be cleaned by deleting the file entirely, which means there is a potential for data loss.

 

Hope this resolves the issue. If this issue persists, please get back to us with the results of the above troubleshooting methods.

 

 

 

Regards,
Rajesh Govind - Microsoft Support Engineer

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