WebSphere Software not installed properly - .nfiregistry and vpd.properties

The installer program for WebSphere® Products use the InstallShield MultiPlatform (ISMP) program to install code. The .nifregistry and vpd.properties files list program components that are currently installed. The file helps ISMP and the installer programs of WebSphere products recognize previous installations of WebSphere products and control options for new installations.
Inorder to successfully install a websphere product after uninstalling another version of the same websphere product, you need to remove the .nfiregistry and vpd.properties files(vpd.properties). Without doing this the ISMP assumes that the same version of the websphere product exists and does not install the product and completes the process.

Location of the .nfiregistry fils on various platforms isThe location of the .nifregistry file varies per operating platform:
On AIX® platforms: The root directory /usr/.ibm/.nif/.nifregistry or the non-root directory /.ibm/.nif/.nifregistry

On HP-UX platforms: The root directory /opt/.ibm/.nif/.nifregistry or the non-root directory /.ibm/.nif/.nifregistry

On i5/OS® platforms: The root directory /QIBM/WAS/.ibm/.nif/.nifregistry

On Linux® platforms: The root directory /opt/.ibm/.nif/.nifregistry

On Solaris platforms: The root directory /opt/.ibm/.nif/.nifregistry or the non-root directory /.ibm/.nif/.nifregistry

On Windows® platforms: The root directory C:\Windows\.nifregistry

Delete this .nfiregistry file manually and the reinstallation of the websphere software works.