Fichiers impossibles à analyser par antivirus

Bonjour,
après une analyse antivirus je constate sur le rapport des objets "locked skipped",qu'est ce que cela veut dire? est ce normal?merci voici le rapport:

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KASPERSKY ONLINE SCANNER REPORT
Wednesday, December 05, 2007 6:54:56 PM
Operating System: Microsoft Windows XP Home Edition, Service Pack 2 (Build 2600)
Kaspersky Online Scanner version: 5.0.98.0
Kaspersky Anti-Virus database last update: 5/12/2007
Kaspersky Anti-Virus database records: 443147
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Scan Settings:
Scan using the following antivirus database: standard
Scan Archives: true
Scan Mail Bases: true

Scan Target - Folders:
C:\

Scan Statistics:
Total number of scanned objects: 79474
Number of viruses found: 0
Number of infected objects: 0
Number of suspicious objects: 0
Duration of the scan process: 02:19:24

Infected Object Name / Virus Name / Last Action
C:\Documents and Settings\LocalService\Cookies\index.dat Object is locked skipped
C:\Documents and Settings\LocalService\Local Settings\Application Data\Microsoft\Windows\UsrClass.dat Object is locked skipped
C:\Documents and Settings\LocalService\Local Settings\Application Data\Microsoft\Windows\UsrClass.dat.LOG Object is locked skipped
C:\Documents and Settings\LocalService\Local Settings\Historique\History.IE5\index.dat Object is locked skipped
C:\Documents and Settings\LocalService\Local Settings\Temp\Cookies\index.dat Object is locked skipped
C:\Documents and Settings\LocalService\Local Settings\Temp\Fichiers Internet temporaires\Content.IE5\index.dat Object is locked skipped
C:\Documents and Settings\LocalService\Local Settings\Temp\History\History.IE5\index.dat Object is locked skipped
C:\Documents and Settings\LocalService\Local Settings\Temporary Internet Files\Content.IE5\index.dat Object is locked skipped
C:\Documents and Settings\LocalService\ntuser.dat Object is locked skipped
C:\Documents and Settings\LocalService\ntuser.dat.LOG Object is locked skipped
C:\Documents and Settings\NetworkService\Local Settings\Application Data\Microsoft\Windows\UsrClass.dat Object is locked skipped
C:\Documents and Settings\NetworkService\Local Settings\Application Data\Microsoft\Windows\UsrClass.dat.LOG Object is locked skipped
C:\Documents and Settings\NetworkService\NTUSER.DAT Object is locked skipped
C:\Documents and Settings\NetworkService\ntuser.dat.LOG Object is locked skipped
C:\Documents and Settings\Propriétaire\Application Data\Mozilla\Firefox\Profiles\os4mst1c.default\cert8.db Object is locked skipped
C:\Documents and Settings\Propriétaire\Application Data\Mozilla\Firefox\Profiles\os4mst1c.default\history.dat Object is locked skipped
C:\Documents and Settings\Propriétaire\Application Data\Mozilla\Firefox\Profiles\os4mst1c.default\key3.db Object is locked skipped
C:\Documents and Settings\Propriétaire\Application Data\Mozilla\Firefox\Profiles\os4mst1c.default\parent.lock Object is locked skipped
C:\Documents and Settings\Propriétaire\Application Data\Mozilla\Firefox\Profiles\os4mst1c.default\search.sqlite Object is locked skipped
C:\Documents and Settings\Propriétaire\Application Data\Mozilla\Firefox\Profiles\os4mst1c.default\urlclassifier2.sqlite Object is locked skipped
C:\Documents and Settings\Propriétaire\Cookies\index.dat Object is locked skipped
C:\Documents and Settings\Propriétaire\Local Settings\Application Data\Microsoft\Windows\UsrClass.dat Object is locked skipped
C:\Documents and Settings\Propriétaire\Local Settings\Application Data\Microsoft\Windows\UsrClass.dat.LOG Object is locked skipped
C:\Documents and Settings\Propriétaire\Local Settings\Application Data\Mozilla\Firefox\Profiles\os4mst1c.default\Cache\_CACHE_001_ Object is locked skipped
C:\Documents and Settings\Propriétaire\Local Settings\Application Data\Mozilla\Firefox\Profiles\os4mst1c.default\Cache\_CACHE_002_ Object is locked skipped
C:\Documents and Settings\Propriétaire\Local Settings\Application Data\Mozilla\Firefox\Profiles\os4mst1c.default\Cache\_CACHE_003_ Object is locked skipped
C:\Documents and Settings\Propriétaire\Local Settings\Application Data\Mozilla\Firefox\Profiles\os4mst1c.default\Cache\_CACHE_MAP_ Object is locked skipped
C:\Documents and Settings\Propriétaire\Local Settings\Historique\History.IE5\index.dat Object is locked skipped
C:\Documents and Settings\Propriétaire\Local Settings\Historique\History.IE5\MSHist012007120520071206\index.dat Object is locked skipped
C:\Documents and Settings\Propriétaire\Local Settings\Temporary Internet Files\AntiPhishing\B3BB5BBA-E7D5-40AB-A041-A5B1C0B26C8F.dat Object is locked skipped
C:\Documents and Settings\Propriétaire\Local Settings\Temporary Internet Files\Content.IE5\index.dat Object is locked skipped
C:\Documents and Settings\Propriétaire\ntuser.dat Object is locked skipped
C:\Documents and Settings\Propriétaire\ntuser.dat.LOG Object is locked skipped
C:\Program Files\Alwil Software\Avast4\DATA\aswResp.dat Object is locked skipped
C:\Program Files\Alwil Software\Avast4\DATA\Avast4.db Object is locked skipped
C:\Program Files\Alwil Software\Avast4\DATA\log\AshWebSv.ws Object is locked skipped
C:\Program Files\Alwil Software\Avast4\DATA\log\nshield.log Object is locked skipped
C:\Program Files\Alwil Software\Avast4\DATA\report\Protection résidente.txt Object is locked skipped
C:\System Volume Information\MountPointManagerRemoteDatabase Object is locked skipped
C:\System Volume Information\_restore{25971772-2766-4CD9-8BFA-EE0C679F980B}\RP81\change.log Object is locked skipped
C:\WINDOWS\Debug\PASSWD.LOG Object is locked skipped
C:\WINDOWS\Internet Logs\fwdbglog.txt Object is locked skipped
C:\WINDOWS\Internet Logs\fwpktlog.txt Object is locked skipped
C:\WINDOWS\Internet Logs\IAMDB.RDB Object is locked skipped
C:\WINDOWS\Internet Logs\JEANBAT.ldb Object is locked skipped
C:\WINDOWS\Internet Logs\tvDebug.log Object is locked skipped
C:\WINDOWS\Registration\{02D4B3F1-FD88-11D1-960D-00805FC79235}.{CBE59B31-E3D7-4481-8986-63FEB933BDAA}.crmlog Object is locked skipped
C:\WINDOWS\SchedLgU.Txt Object is locked skipped
C:\WINDOWS\SoftwareDistribution\ReportingEvents.log Object is locked skipped
C:\WINDOWS\system32\CatRoot2\edb.log Object is locked skipped
C:\WINDOWS\system32\CatRoot2\tmp.edb Object is locked skipped
C:\WINDOWS\system32\config\Antivirus.Evt Object is locked skipped
C:\WINDOWS\system32\config\AppEvent.Evt Object is locked skipped
C:\WINDOWS\system32\config\default Object is locked skipped
C:\WINDOWS\system32\config\default.LOG Object is locked skipped
C:\WINDOWS\system32\config\Internet.evt Object is locked skipped
C:\WINDOWS\system32\config\SAM Object is locked skipped
C:\WINDOWS\system32\config\SAM.LOG Object is locked skipped
C:\WINDOWS\system32\config\SecEvent.Evt Object is locked skipped
C:\WINDOWS\system32\config\SECURITY Object is locked skipped
C:\WINDOWS\system32\config\SECURITY.LOG Object is locked skipped
C:\WINDOWS\system32\config\software Object is locked skipped
C:\WINDOWS\system32\config\software.LOG Object is locked skipped
C:\WINDOWS\system32\config\SysEvent.Evt Object is locked skipped
C:\WINDOWS\system32\config\system Object is locked skipped
C:\WINDOWS\system32\config\system.LOG Object is locked skipped
C:\WINDOWS\system32\drivers\fidbox.dat Object is locked skipped
C:\WINDOWS\system32\drivers\fidbox.idx Object is locked skipped
C:\WINDOWS\system32\h323log.txt Object is locked skipped
C:\WINDOWS\system32\wbem\Repository\FS\INDEX.BTR Object is locked skipped
C:\WINDOWS\system32\wbem\Repository\FS\INDEX.MAP Object is locked skipped
C:\WINDOWS\system32\wbem\Repository\FS\MAPPING.VER Object is locked skipped
C:\WINDOWS\system32\wbem\Repository\FS\MAPPING1.MAP Object is locked skipped
C:\WINDOWS\system32\wbem\Repository\FS\MAPPING2.MAP Object is locked skipped
C:\WINDOWS\system32\wbem\Repository\FS\OBJECTS.DATA Object is locked skipped
C:\WINDOWS\system32\wbem\Repository\FS\OBJECTS.MAP Object is locked skipped
C:\WINDOWS\Temp\Perflib_Perfdata_6b8.dat Object is locked skipped
C:\WINDOWS\Temp\ZLT06c34.TMP Object is locked skipped
C:\WINDOWS\Temp\ZLT06c37.TMP Object is locked skipped
C:\WINDOWS\Temp\_avast4_\Webshlock.txt Object is locked skipped
C:\WINDOWS\WindowsUpdate.log Object is locked skipped

Scan process completed.