Roland Coombe:Thank you for the post.Sometimes this issue can be resolved by first running the uninstaller for FileMaker Server 12. I've even seen the FileMaker Server 12 uninstaller remove previous versions like FileMaker Server 10 or 11. Afterwards, the installation was able to proceed.At least, give that a try before completely reinstalling the operating system. Please keep me updated with any progress.TSFalconFileMaker, Inc.
Thanks for your reply. However the issue was that I was unable to re-install filemaker server 12 because it kept telling me that there was a previous installation of FMS 7 already running.
Due to deadlines I had no choice but to re-install the server OS so did not have time to find the solution.