Current version of BPM must be uninstalled before a new version can be installed.
The following things must be checked:
* Was the BPM restarted after the uninstall of the previous version?
* Find and rename the file called vpd.properties file and create an empty one.
Check if these three keys exist in the Windows registry and remove them, followed by a reboot of the BPM server:
HKEY_LOCAL_MACHINE\SOFTWARE\Mercury Interactive\HP Business Process Monitor
HKEY_LOCAL_MACHINE\SOFTWARE\Mercury Interactive\Mercury Business Process Monitor