Do the following:

1. Run the PLM uninstall string.
   
   1. Open the Registry Editor.
       

      Always back up the whole registry before making any modifications. Incorrect changes to the registry can cause serious system problems.
   2. Go to ..\Microsoft\Windows\CurrentVersion\Uninstall and look for the registry entry.
   3. Click Start > Run and type “UninstallString” value in the field.
      
      This will open the Trend Micro Plug-in Manager installation wizard that will give you the option to uninstall PLM.

      

2. Extract osce-11.0-SP1-all-in-one.exe with 7zip.
3. Browse the extracted FileGroup750 folder for PLMSetup.exe.
4. Run PLMSetup.exe as administrator and choose Remove to uninstall Plug-in Manager.

   

5. Click Next.
6. Go to Control Panel > Programs > Programs and Features and uninstall PHP from the list.
7. Log in to the OSCE web console and install Plug-in Manager.
   
    

   PHP is automatically installed during Plug-in Manager installation.

   

8. Recreate OSCE virtual directory by following the instructions in the following KB (Option B): Recreating Virtual Directory for OfficeScan (OSCE).
9. Reset PHP_via_FastCGI permission by instructions in the following KB (i.e. Go to the Summary screen...): "Server Error" or "PHP Error" appears on the Summary Page of the OfficeScan management console.