How to Fix Windows Installer Policy Error When Installing Acrobat Pro 2020
Question details
The user is unable to complete the installation of Acrobat Pro 2020 because the system restricts the installation process with an administrator policy error.
- Product
- Adobe Acrobat Pro 2020
- Device & OS
- Windows Server 2019
- Scenario
- Installing new software applications in a Windows Server environment.
- Observed behavior
- The installation fails and prompts the message: 'The system administrator has set policies to prevent this installation.'
Ensure you are logged in with an Administrator account and have the necessary privileges to modify Local Group Policy and security restrictions on your Windows Server.
Modify Windows Installer Settings in Group Policy
Change the Local Group Policy to allow the Windows Installer package to run without domain or local restriction blocks.
Windows Server environments often have strict default policies that block unauthorized installations. Adjusting the Windows Installer policy temporarily can resolve the installation block.
Press Win + R on your keyboard, type 'gpedit.msc', and press Enter to launch the Local Group Policy Editor.
Go to Computer Configuration > Administrative Templates > Windows Components > Windows Installer.
Locate the 'Disable Windows Installer' policy on the right pane, double-click it, and change its status to 'Not Configured' or 'Disabled'.
Click 'Apply' and 'OK'. Open Command Prompt, run 'gpupdate /force' to apply the new policies immediately, and then retry installing Acrobat Pro 2020.
Check AppLocker and Software Restriction Rules
Verify that local security policies like AppLocker or third-party antiviruses are not blacklisting the Adobe installer.
Manage and Edit PDFs Easily with WPS Office
If you want to avoid complex server policy errors and heavy software installations, WPS Office is an excellent free, lightweight alternative. It features a robust built-in PDF editor that is fully compatible with standard PDF formats.
- 1. Download the Installer: Visit the official WPS Office website and download the lightweight installation package.
- 2. Install WPS Office: Run the installer. The simplified setup bypasses complex enterprise policy requirements.
- 3. Start Editing PDFs: Open WPS Office, select the 'PDF' tab, and open your document to begin editing.
Frequently Asked Questions
Why do I get a system administrator policy error even when logged in as Admin?
Being logged in as an Administrator does not automatically bypass Group Policy Objects (GPOs) or AppLocker rules set at the domain or local level. If a policy explicitly disables the Windows Installer service, the installation will be blocked regardless of your user privileges.
Is Adobe Acrobat Pro 2020 officially supported on Windows Server 2019?
Yes, Adobe Acrobat Pro 2020 is compatible with Windows Server 2019. Ensure that your server meets the software's system requirements and that the installer is an approved executable with proper permissions.
How can I quickly refresh local policies after making a change?
You can forcefully update local and domain policies by opening the Command Prompt and running the command 'gpupdate /force'. Wait for the confirmation message before attempting the installation again.
