There are many reasons to reinstall hyperion prducts when you get with a trouble.
The steps:
1. Stop all of hyperion services
2. Run uninstall Hyperion
3. Delete the Hyperion registries, this is very important, you cannot just simple run reinstall without clear the Hyperion registries.
regedit -> delete all of the entries inside Hyperion Solution, and other 2 hyperion items below Oracle
4. Delete all of the related Hyperion Environment Variables by right click Computer. For the path variable, you can edit it and delete all hyperion related entries, but don;t delete the entries for other applications.
5. Then you can go ahead to reinstall.
Have a fun!
