Error 432: Setup has detected that unInstallShield is in use. Please close unInstallShield and restart setup.



  • Another un-installation may be already running in the Task manager.
  • The un-installation process is hanged. Check if there is any pending installation(s)/    un-installation.
  • The IsUninst.exe executable may be running and is in use.
  • You may not have administrative rights on the computer, or you may be logged on as a user who does not have administrative rights.
  • Windows Installer [msiexec] might be unregistered.
  • There may be some sort of virus scan going on in the background which is causing a conflict.
  • Installshield may not be able to create a log file.
  • There may be some other problem with the Windows Installer on your computer.

Solution 1:

Log off current user and login as Administrator.

Solution 2:

Pause or disable the antivirus temporarily.

Solution 3:

  • Delete if any un-install process is running in task manager.
  • Press Ctrl + Alt + Delete.
  • Select Task Manager.
  • Select the Processes tab.
  • Look for msiexec.exe or IsUninst.exe.
  • Select and click End Process.

Solution 4:

  • Make sure that no other applications (including anti-virus software), installations, or processes are running in the background.
  • Press “Ctrl+Alt+Delete” – >The Windows Task Manager appears.
  • Click the Application tab.
  • Look for an entry related to a program installation. This might include words, such as “msiexec”, “install,” “installer,” or “MSI.”
  • If found, highlight the entry, and then click End Task.
  • Try the installation again.

Solution 5:

  • Delete IsUninst.exe file from “C:\Windows” folder
  • Navigate to C:\Windows
  • Locate IsUninst.exe and Delete it.
  • If IsUninst.exe cannot be deleted because it is in use, reboot the machine and try again.

Solution 6:

  • Start > Run > type regedit
  • Navigate to the below path
  • “HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\InProgress”
  • Delete the below key. Try installation again.