Office 2007 netbackup7 install failed on windows2

make sure you counsel me.
we try to install nbu7 for windows 2008 r2 x64.
utilising enterprise license.
after very few,Windows 7 Keygen, installer do rollback without the need of error pop-up.
this is installer-log where fail level.
01-18-2011,Windows 7 Keygen,sixteen:54:32 : entering cacheinstallfiles customized action, commit phase. 01-18-2011,16:54:32 : model error: 5,Windows 7 Key, deny accessibility
01-18-2011,16:54:32 : couldn't copy cab file to installer cache directory. see above error. returning with error. 01-18-2011,Windows 7 Key,sixteen:54:32 : customaction commit_cacheinstallfiles returned actual error code 1603 (note this may not be 100% exact if translation occurred inside of sandbox) 01-18-2011,sixteen:54:32 : action 16:54:32: rollback. rolling back action: 01-18-2011,Office 2007,sixteen:54:32 : validating set up standing

i logind in administrator.