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:
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.
If the error message allows you to browse to the .msi file, then complete the following steps:
Important: If you do not have the cached installer files, and you have a downloaded version of Acrobat, then redownload the installer. This information also applies to the tryout edition of Acrobat.
To repair Acrobat:
The installer information for the previous version of Adobe Reader or Acrobat is missing or has become corrupted. Removing the previous version allows Acrobat to install. Acrobat and Adobe Reader require this information to successfully install a newer version. Some registry cleaners or system maintenance tools can remove registry information needed by the installer and cause this error.