HomeTroubleshootingIssues while Uninstalling"Another version of this product is already installed. Installation of this version cannot continue."

17.2. "Another version of this product is already installed. Installation of this version cannot continue."

Applies to: All products, versions 5.x–7.x uninstallers

In Programs and Features (or Add or Remove Programs, or using msiexec /x), I tried to uninstall my Palisade software. But a window popped up with the title "Windows Installer" and this message:

Another version of this product is already installed. Installation of this version cannot continue. To configure or remove the existing version of this product, use Add/Remove Programs on the Control Panel.

How can I uninstall the product?

Some pointers are incorrect in the database of installed programs. This can happen, according to CNet, if "your computer's registry becomes corrupted; you or someone else inadvertently changes a registry setting used by the Windows Installer, resulting in a problem; the installation of a program that uses Windows Installer ... is interrupted; or there are multiple instances of Setup running simultaneously, or an instance of Setup is blocked".

Microsoft offers a tool to repair this type of problem; please see Microsoft's article Fix Problems with Programs That Can't Be Installed or Uninstalled.

(For future reference: a repair of our software is almost always a better option than uninstalling and reinstalling. It preserves the license, it's faster, and it's less disruptive in general. Very seldom is a full uninstall/reinstall necessary. For directions, see Repair of Palisade Software.)

Last edited: 2016-11-15

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