Oracle form downloaded at:
http://www.oracle.com/technetwork/developer-tools/forms/downloads/index.html
When I ran the file setup_fmw_12
Even though this relates to the installation of a developer tool, most would consider this particular type of question as generally off topic for stackoverflow. Your question also contains too little information to determine what the problem really is.
However, let's just mention some obvious things to see if it helps you solve your own problem:
Did you try the setup on another computer (or a virtual machine). This could be a good way to avoid the whole problem rather than spending a lot of time trying to fix it.
Did you locate any log files for the failed install?
%SystemDrive%\Program Files\Oracle\Inventory\logs
(%SystemDrive%
is normally C:\
).%SystemDrive%\Program Files (x86)\Oracle\Inventory\logs
for 32bit installers on 64 bit systems). And the most obvious of all: did you contact Oracle support or search their user community or knowledge bases? Somebody will have seen this problem before. Looks like you need to register: https://support.oracle.com/
A quick search reveals that the Oracle Universal Installer is a Java based installer. Could Java be broken on the box you install on? (looks like the launcher should install the runtime automatically, but this could fail due to special conditions on the box. Try on a clean virtual machine). How to check whether java is installed on the computer.
Try disabling your anti-virus as well before running the setup on the problem box. Some setups even try to access the Internet during installation, and then your firewall could be a problem too. I would hate to turn that off though.