Unable to install Backup Exec 12.5

[robert_greeson]

Our company recently purchased 12.5 upgrade to 12.0.  When I tried to run the install I got an error message that wouldn't allow me to install.  As a result I uninstalled 12.0 to install a fresh copy of 12.5.  Now when I run the 12.5 install the install backup exec is greyed out.  The only option it gives me is install remote administration console only. 

I tried to delete all aspects of backup exec out of the registry and it still didn't help.  If anyone has any idea the help would be much appreciated.

[CraigV]

Had the same issue a few days ago when migrating Backup Exec 11D to 12.5.
I used the link below to completely remove everything from the server that references BE, rebooted, and installed 12.5.
The installation puts entries into the registry I didn't know existed!


http://seer.entsupport.symantec.com/docs/287320.htm

After your restart, you should be able to install BE 12.5 if you have the correct permissions.

[robert_greeson]

I ran through all the documentation and removed everything and the install backup exec option is still greyed.  Any other suggestions?