Monthly archives: December, 2016

Error – Another version of this product is already installed

Today, I got an weird error message when trying to remove/install Adobe Pro XI on a user’s machine. It said that another version of this product is already installed. Here’s the symptom. The app is installed but no icon is shown up in Start Menu No icon in Add/Remove Program The GUID is under HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall All …