buy office pro 2010 netbackup7 install failed on

[hunankl132]

please help me.
we attempt to install nbu7 for windows 2008 r2 x64.
employing enterprise license.
after several, installer do rollback with out error pop-up.
this really is installer-log the place fail point.
01-18-2011,sixteen:54:32 : entering cacheinstallfiles custom action, commit phase. 01-18-2011,microsoft office Professional Plus 2010 64bit key,sixteen:54:32 : procedure error: 5,genuine office 2010, deny access
01-18-2011,office Professional 2007 generator key,sixteen:54:32 : could not copy cab file to installer cache directory. see above error. returning with error. 01-18-2011,16:54:32 : customaction commit_cacheinstallfiles returned actual error code 1603 (be aware this might not be 100% accurate if translation took place inside of sandbox) 01-18-2011,microsoft office 2010 pro,16:54:32 : action sixteen:54:32: rollback. rolling back again action: 01-18-2011,buy office pro 2010,16:54:32 : validating set up position

i logind in administrator.