How to install netbackup client on windows server 2012

Hi

everyone know that netbackup version 7.5.0.6 has been released and it's coming with full support for windows server 2012

My issue is when i start to install netbackup client 7.5 it's failed with this error

07-10-2013,12:11:10 : One or more entries in the HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\PendingFileRenameOperations  
07-10-2013,12:11:10 : registry value are associated with products other than NetBackup. This indicates that previous operations on this host are  
07-10-2013,12:11:10 : pending completion following a reboot of the system. Consider finishing pending operations by rebooting the system.

attach the output log for this installation

thanks