Issue description  

Prerequisites  

Before troubleshooting, ensure:

• .NET Framework 4.5 or above is installed on the system.

• The installation directory has full permissions for the SYSTEM account.

• ADAudit Plus is not already installed on the system.

Possible causes  

• Missing System Requirements

• The required .NET Framework (4.5 or above) may not be installed.
  

• ADAudit Plus may already be present as an installed application, causing conflicts.
  

• Insufficient Access to Admin Share

• The service account configured for ADAudit Plus may not have access to the admin share (C$\Windows) on the target machine.

• The configured credentials may lack file-writing privileges, preventing installation.

• Service Log On Permission Issues

• The ManageEngine ADAudit Plus service may not have the correct logon permissions, restricting its ability to execute installation processes.

• Corrupt or Unregistered Windows Installer Components

• Windows Installer components may be corrupt or unregistered, leading to installation failures.

• A system restart or manual re-registration of Windows Installer may be required.

Resolution 

Step 1: Check system requirements  

1. Open Control Panel > Programs and Features.
   
2. Verify that .NET Framework 4.5 or above is installed.

3. Ensure that ADAudit Plus is not listed as an installed application.
   

Step 2: Verify access to the admin share  

1. Open Run (Windows + R), type:
   
2. \\<TargetComputer>\C$

3. Press Enter.

4. Use the service account configured for ADAudit Plus to access C:\Windows on the target computer.

5. If access is denied, modify domain settings:
   

• Log in to ADAudit Plus.

• Navigate to Domain Settings > Modify Credentials.

• Enter the credentials of an account with file-writing privileges for C:\Windows.

Step 3: Configure ADAudit Plus service log on permissions  

1. Open Run (Windows + R), type services.msc, and press Enter.
   
2. Locate ManageEngine ADAudit Plus, right-click, and select Properties.

3. Go to the Log On tab and select This account.

4. Enter administrator credentials and apply changes.
   

Step 4: Restart and re-register windows installer  

1. Open Run (Windows + R), type:
   
2. msiexec /unregister

3. Press Enter.

4. Again, open Run and type:

5. msiexec /register

6. Press Enter.

7. Restart the system and attempt the installation again.
   

Related topics and articles  

• Troubleshooting Windows Installer Errors
  
• System Requirements for ADAudit Plus

• General Installation Guide
  

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