Probleme d'installation d'autocad

j'ai un 64-bit Windows 8, et quand j'essaie d'installer AutoCAD 2014, l'erreur suivant apparait

2013/4/4:16:34:30 Alan ALAN-PC === Setup started on ALAN-PC by Alan ===
2013/4/4:16:34:30 Alan ALAN-PC Path_Length: 155
2013/4/4:16:34:30 Alan ALAN-PC Current Directory C:\Autodesk\AutoCAD_2014_English_Win_64bit_dlm
2013/4/4:16:34:30 Alan ALAN-PC Launch
2013/4/4:16:34:30 Alan ALAN-PC CommandLine
2013/4/4:16:34:30 Alan ALAN-PC Path_Length: 155
2013/4/4:16:34:30 Alan ALAN-PC Current Directory C:\Users\Vita\AppData\Local\Temp\_AI6F01.tmp
2013/4/4:16:34:38 Alan ALAN-PC === Setup ended ===

2013/4/4:16:34:31 Alan ALAN-PC === Setup started on ALAN-PC by Alan ===
2013/4/4:16:34:31 Alan ALAN-PC Path_Length: 155
2013/4/4:16:34:31 Alan ALAN-PC Current Directory C:\Users\Vita\AppData\Local\Temp\_AI6F01.tmp
2013/4/4:16:34:31 Alan ALAN-PC Launch
2013/4/4:16:34:31 Alan ALAN-PC Install CustomCallback Info Invoking custom callback for details: [SETUP] CB_FUNC=CustomPlatformCheck CB_SOURCE=C:\Users\Vita\AppData\Local\Temp\_AI6F01?.tmp\Setup\AcSetup.dll
2013/4/4:16:34:31 Alan ALAN-PC Install CustomCallback Info Custom callback response: Status=0 SUCCECSS Title= Message= URLTitle= URLLink=
2013/4/4:16:34:38 Alan ALAN-PC PageOpen LaunchDialog
2013/4/4:16:34:40 Alan ALAN-PC PageOpen LicenseDialog
2013/4/4:16:34:43 Alan ALAN-PC PageOpen ProductInfoDialog
2013/4/4:16:35:04 Alan ALAN-PC PageOpen ProductSelectionDialog2
2013/4/4:16:35:16 Alan ALAN-PC PageOpen FullProgressDialog
2013/4/4:16:35:16 Alan ALAN-PC Installing .NET
: "C:\Autodesk\AutoCAD_2014_English_Win_64bit_dlm\3r?dParty\NET\4\wcu\dotNetFramework\dotNetFx40LP_Full?_x86_x64_1046.exe" /q
2013/4/4:16:35:22 Alan ALAN-PC Install .NET Framework Runtime 4.0 Language Pack Failed Installation aborted, Result=1603





est ce que quelqu'un peu m'aider merci