Windows Internal Database is bundled along with Windows applications that need to use a backend database solely for their application purpose. Eg: WSUS, Sharepoint.
The application’s installation files will call the MSI package for installing the Windows Installer Database. In case the application setup fails due to a failure in installing the Windows Internal Database, then you would need the MSI log file for the WID MSI package. This can be found normally in the <System Drive:>\Windows folder and would have the following naming convention: *WSSEE*.log. If you are unable to locate the file, then find out all *.log files in the folder which were created recently.
Once you have located the file, you would need to search for the following string “Return Value 3” in the file.
MSI (s) (E0:88) [16:02:14:252]: Product: Windows Internal Database — Error 1402. Could not open key: <Reg Key Name>. System error 5. Verify that you have sufficient access to that key, or contact your support personnel.
Error 1402. Could not open key: <Reg Key Name> System error 5. Verify that you have sufficient access to that key, or contact your support personnel.
Action ended 16:02:14: InstallFinalize. Return value 3.
If you check what Operating System error 5 stands for, you will find out that it is a permissions issue.
C:\>net helpmsg 5
Access is denied.
Based on the error message, you will have to take corrective actions and re-run the setup.