Error 1714 | Acrobat, Reader

When you install or update Adobe Reader or Acrobat products, the Microsoft Windows Installer displays the following error:

"Error 1714: The older version of Adobe [Acrobat/Reader] cannot be removed. Contact your technical support group."

You sometimes also receive one of the following error messages:

• "Error 1612 Missing source media."
• "The installation source for this product is not available. Verify that the source exists and that you can access it." 
• "The feature you are trying to use is on a network resource that is unavailable. Click OK to try again, or enter an alternate path to a folder containing the installation package 'Adobe [product] .msi' in the box below."

Solution 1: Try using the Microsoft Fix it wizard. 

The Microsoft Fix it wizard is available at http://support.microsoft.com/kb/971187. The wizard updates the Windows registry so that you can usually uninstall previous versions of the program, or install or update the current version successfully.  

Disclaimer: Adobe does not support third-party software and provides this information as a courtesy only.

Solution 2: Select the MSI file from the original installation files.

If the error message allows you to browse to the .msi file, then complete the following steps:

Solution 3: Remove all previous versions of Acrobat and Adobe Reader using Add/Remove programs.