It happens on 4 different computers. We just started to update our excel from 2007 to 2010. On all of the ones that we updated to 2010 it happens on.
Event Viewer - Error
Faulting application name: EXCEL.EXE, version: 14.0.6126.5003, time stamp: 0x505b0834
Faulting module name: EXCEL.EXE, version: 14.0.6126.5003, time stamp: 0x505b0834
Exception code: 0xc0000005
Fault offset: 0x00847451
Faulting process id: 0x1e78
Faulting application start time: 0x01ce2ee60150a25d
Faulting application path: C:\excel viewer\Office14\EXCEL.EXE
Faulting module path: C:\excel viewer\Office14\EXCEL.EXE
Report Id: 405d78bd-9ad9-11e2-abc7-30469a3c9061
Warning
Windows detected your registry file is still in use by other applications or services. The file will be unloaded now. The applications or services that hold your registry file may not function properly afterwards.
DETAIL -
24 user registry handles leaked from \Registry\User\S-1-5-21-1315548938-205674687-2469673363-500:
Process 7892 (\Device\HarddiskVolume3\excel viewer\Office14\EXCEL.EXE) has opened key \REGISTRY\USER\S-1-5-21-1315548938-205674687-2469673363-500
Process 8240 (\Device\HarddiskVolume3\Windows\System32\dllhost.exe) has opened key \REGISTRY\USER\S-1-5-21-1315548938-205674687-2469673363-500
Process 7892 (\Device\HarddiskVolume3\excel viewer\Office14\EXCEL.EXE) has opened key \REGISTRY\USER\S-1-5-21-1315548938-205674687-2469673363-500\Software\Microsoft\Office\Common\UserInfo
Process 7892 (\Device\HarddiskVolume3\excel viewer\Office14\EXCEL.EXE) has opened key \REGISTRY\USER\S-1-5-21-1315548938-205674687-2469673363-500\Software\Policies
Process 7892 (\Device\HarddiskVolume3\excel viewer\Office14\EXCEL.EXE) has opened key \REGISTRY\USER\S-1-5-21-1315548938-205674687-2469673363-500\Software\Microsoft\Office\14.0\Common\LanguageResources
Process 7892 (\Device\HarddiskVolume3\excel viewer\Office14\EXCEL.EXE) has opened key \REGISTRY\USER\S-1-5-21-1315548938-205674687-2469673363-500\Software\Microsoft\Office\14.0\Excel
Process 7892 (\Device\HarddiskVolume3\excel viewer\Office14\EXCEL.EXE) has opened key \REGISTRY\USER\S-1-5-21-1315548938-205674687-2469673363-500\Software\Microsoft\Office\14.0\Excel
Process 8240 (\Device\HarddiskVolume3\Windows\System32\dllhost.exe) has opened key \REGISTRY\USER\S-1-5-21-1315548938-205674687-2469673363-500\Software\Microsoft\Windows\CurrentVersion\Explorer
Process 7892 (\Device\HarddiskVolume3\excel viewer\Office14\EXCEL.EXE) has opened key \REGISTRY\USER\S-1-5-21-1315548938-205674687-2469673363-500\Software\Microsoft\Windows\CurrentVersion\Explorer
Process 7892 (\Device\HarddiskVolume3\excel viewer\Office14\EXCEL.EXE) has opened key \REGISTRY\USER\S-1-5-21-1315548938-205674687-2469673363-500\Software\Microsoft\Office\14.0\Excel\Options
Process 7892 (\Device\HarddiskVolume3\excel viewer\Office14\EXCEL.EXE) has opened key \REGISTRY\USER\S-1-5-21-1315548938-205674687-2469673363-500\Software\Microsoft\Office\14.0\Excel\Options
Process 7892 (\Device\HarddiskVolume3\excel viewer\Office14\EXCEL.EXE) has opened key \REGISTRY\USER\S-1-5-21-1315548938-205674687-2469673363-500\Software\Microsoft\Office\14.0\Excel\Security\Trusted Documents
Process 7892 (\Device\HarddiskVolume3\excel viewer\Office14\EXCEL.EXE) has opened key \REGISTRY\USER\S-1-5-21-1315548938-205674687-2469673363-500\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders
Process 7892 (\Device\HarddiskVolume3\excel viewer\Office14\EXCEL.EXE) has opened key \REGISTRY\USER\S-1-5-21-1315548938-205674687-2469673363-500\Software\Microsoft\Office\14.0\Excel\Security
Process 7892 (\Device\HarddiskVolume3\excel viewer\Office14\EXCEL.EXE) has opened key \REGISTRY\USER\S-1-5-21-1315548938-205674687-2469673363-500\Software\Microsoft\Office\14.0\Common\Toolbars
Process 7892 (\Device\HarddiskVolume3\excel viewer\Office14\EXCEL.EXE) has opened key \REGISTRY\USER\S-1-5-21-1315548938-205674687-2469673363-500\Software\Microsoft\Office\14.0\Common\Research\Translation
Process 7892 (\Device\HarddiskVolume3\excel viewer\Office14\EXCEL.EXE) has opened key \REGISTRY\USER\S-1-5-21-1315548938-205674687-2469673363-500\Software\Microsoft\Shared
Process 7892 (\Device\HarddiskVolume3\excel viewer\Office14\EXCEL.EXE) has opened key \REGISTRY\USER\S-1-5-21-1315548938-205674687-2469673363-500\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
Process 7892 (\Device\HarddiskVolume3\excel viewer\Office14\EXCEL.EXE) has opened key \REGISTRY\USER\S-1-5-21-1315548938-205674687-2469673363-500\Software\Microsoft\Office\14.0\Common\General
Process 7892 (\Device\HarddiskVolume3\excel viewer\Office14\EXCEL.EXE) has opened key \REGISTRY\USER\S-1-5-21-1315548938-205674687-2469673363-500\Software\Microsoft\Office\14.0\Common
Process 7892 (\Device\HarddiskVolume3\excel viewer\Office14\EXCEL.EXE) has opened key \REGISTRY\USER\S-1-5-21-1315548938-205674687-2469673363-500\Software\Microsoft\Office\Common
Process 7892 (\Device\HarddiskVolume3\excel viewer\Office14\EXCEL.EXE) has opened key \REGISTRY\USER\S-1-5-21-1315548938-205674687-2469673363-500\Software\Microsoft\CTF
Process 8240 (\Device\HarddiskVolume3\Windows\System32\dllhost.exe) has opened key \REGISTRY\USER\S-1-5-21-1315548938-205674687-2469673363-500\Control Panel\International
Process 7892 (\Device\HarddiskVolume3\excel viewer\Office14\EXCEL.EXE) has opened key \REGISTRY\USER\S-1-5-21-1315548938-205674687-2469673363-500\Control Panel\International