Error 1625 (This installation is forbidden by system policy. Contact your system administrator)

Resolution for HKLM\Software\Policies\Microsoft\Windows\Installer does not exist.

Possible solutions for the error Error "1625 (This installation is forbidden by system policy. Contact your system administrator)"

Solution 1:

The UiPath Studio MSI installer enables to install Studio, StudioX, Robot, and Assistant. Use the Enterprise Edition of the installer if the organization has purchased the UiPath Platform or installation is performed as part of a trial of the UiPath Platform. If it is a community user, then the Community Edition of the installer can be used.

For the Community Edition, the installer is named UiPath.StudioCommunity.msi.

Perform the installation for the current user by selecting the Quick option in the installation wizard (no administrator permissions required) or for all the users on the machine by selecting the Custom option (requires administrator permissions). For instructions on installing from the command line, see Command Line Parameters.

If Microsoft Windows Server is being used, per-user installations performed when the Quick option may not be completed successfully, if selected. If an error occurs stating that policies have been set to prevent the installation, do one of the following if an administrator privilege is available on the machine:

  • Open the Registry Editor, and then, in the registry key HKLM\Software\Policies\Microsoft\Windows\Installer, configure the policy DisableMSI = 0 to enable the Windows installer for all applications.
  • Perform the installation per machine by installing using the Custom option.

Reference: Install Studio .

Solution 2:

  1. Run the installer with admin privilege ( Read more on How to Make Program Always Run As Administrator In Windows 11/ 10 ) and see if the issue is resolved.
  2. Try disabling the firewall on the system and see if that helps.

Note: If PC is company-issued, it is not needed to try the solutions – simply contact local IT admin.

Solution 3:

For the encountered error message: "Running product '{5A0DB374-E37B-40A9-901A-5D45D82A79C0}' with user privileges. DisableMsi policy is set to or defaulted to 1. This is the client and the user does not have full admin token. Evaluation is delayed until after credentials provided. This install could still be blocked"

Error #1625 is a Windows error that comes up during installation if a security policy on the computer has been enabled. Adjust the setting to allow installation but log in as an Administrator to make the changes.

  • Click on Start, type Control Panel and press Enter
  • Click on User Accounts. Under your name, it would indicate if you are an Administrator. If administrator privileged, proceed with the steps below, otherwise, let another user with Administrator rights to give you access to proceed.

How to fix the error?

  • Click on Start and type gpedit.msc then press Enter
  • Select Administrative Templates under Computer Configuration


  • Double-click on Windows Components


  • Double-click on Windows Installer


  • Go to Turn off Windows Installer and double-click on it to change the current state. Enabled means installation is restricted, resulting in Error #1625.


  • Select Not Configured and click OK to save the changes.


  • Click OK on the error prompt and retry installing.

Reference: Installation Error: #1625

Solution 4: (last resort solution, use only when the above solutions are not working)

Error 1625

Cause: A policy set on the machine does not allow installing applications using MSI files. This error usually applies to Windows Server machines that forbid MSI installations through policies.

Follow the steps below to add a registry key that allows running MSI installers.

Administrator rights are required to perform these steps. If these settings are not manageable, contact local system administrator or use Studio installer on a machine on which MSI installations are allowed.

  1. Open the Registry Editor on the machine.
  2. Navigate to the registry key HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Installer
  3. If it doesn't exist, create key Installer in Windows key
  4. Create or edit the value named DisableMSI of type REG_DWORD and set its Value data to 0.
  5. Close Registry Editor
  6. Restart the machine for the registry changes to apply.
  7. Try to install it again

Reference: Studio Common Installation Errors .