metto l'ultima parte del file directx.log, se può esservi utile a capire il problema
11/17/13 14:32:45: DXWSetup: ***** DXWSETUP *****
11/17/13 14:32:45: DXWSetup: WinMain()
11/17/13 14:32:45: DXWSetup: Installing on Windows 6.1.7601
11/17/13 14:32:45: DXWSetup: Unable to get Version on target file C:\Windows\system32\directx\websetup\dsetup.dll
11/17/13 14:32:45: DXWSetup: Installed file C:\Windows\system32\directx\websetup\dsetup.dll
11/17/13 14:32:45: DXWSetup: Unable to get Version on target file C:\Windows\system32\directx\websetup\dsetup32.dll
11/17/13 14:32:45: DXWSetup: Installed file C:\Windows\system32\directx\websetup\dsetup32.dll
11/17/13 14:32:45: DXWSetup: GetDXVersion(): Unable to get RC string from registry.
11/17/13 14:32:45: DXWSetup: DirectX Version: 4.09.00.0904.00
11/17/13 14:32:45: DXWSetup: Setup Version: 4.09.00.0904.00
11/17/13 14:32:51: DXWSetup: Deleted file C:\Windows\system32\directx\websetup\dsetup.dll.
11/17/13 14:32:51: DXWSetup: Deleted file C:\Windows\system32\directx\websetup\dsetup32.dll.
11/17/13 14:32:51: DXWSetup: Deleted file C:\Windows\system32\directx\websetup\inseng.dll.
11/17/13 14:33:29: DXWSetup: ***** DXWSETUP *****
11/17/13 14:33:29: DXWSetup: WinMain()
11/17/13 14:33:29: DXWSetup: Installing on Windows 6.1.7601
11/17/13 14:33:29: DXWSetup: Unable to get Version on target file C:\Windows\system32\directx\websetup\dsetup.dll
11/17/13 14:33:29: DXWSetup: Installed file C:\Windows\system32\directx\websetup\dsetup.dll
11/17/13 14:33:29: DXWSetup: Unable to get Version on target file C:\Windows\system32\directx\websetup\dsetup32.dll
11/17/13 14:33:29: DXWSetup: Installed file C:\Windows\system32\directx\websetup\dsetup32.dll
11/17/13 14:33:29: DXWSetup: GetDXVersion(): Unable to get RC string from registry.
11/17/13 14:33:29: DXWSetup: DirectX Version: 4.09.00.0904.00
11/17/13 14:33:29: DXWSetup: Setup Version: 4.09.00.0904.00
11/17/13 14:33:36: DXWSetup: Deleted file C:\Windows\system32\directx\websetup\dsetup.dll.
11/17/13 14:33:36: DXWSetup: Deleted file C:\Windows\system32\directx\websetup\dsetup32.dll.
11/17/13 14:33:36: DXWSetup: Deleted file C:\Windows\system32\directx\websetup\inseng.dll.
11/17/13 14:40:51: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\d3dx9_24_x64.inf [DefaultInstall]
11/17/13 14:40:52: infinst: Target file: 'C:\Windows\system32\d3dx9_24.dll'
Target file is Version 9.5.132.0
Source file is Version 9.5.132.0
11/17/13 14:40:52: infinst: C:\Windows\system32\d3dx9_24.dll have been installed already.
11/17/13 14:40:52: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\d3dx9_25_x64.inf [DefaultInstall]
11/17/13 14:40:53: infinst: Target file: 'C:\Windows\system32\d3dx9_25.dll'
Target file is Version 9.6.168.0
Source file is Version 9.6.168.0
11/17/13 14:40:53: infinst: C:\Windows\system32\d3dx9_25.dll have been installed already.
11/17/13 14:40:53: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\d3dx9_26_x64.inf [DefaultInstall]
11/17/13 14:40:54: infinst: Target file: 'C:\Windows\system32\d3dx9_26.dll'
Target file is Version 9.7.239.0
Source file is Version 9.7.239.0
11/17/13 14:40:54: infinst: C:\Windows\system32\d3dx9_26.dll have been installed already.
11/17/13 14:40:54: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\d3dx9_27_x64.inf [DefaultInstall]
11/17/13 14:40:55: infinst: Target file: 'C:\Windows\system32\d3dx9_27.dll'
Target file is Version 9.8.299.0
Source file is Version 9.8.299.0
11/17/13 14:40:55: infinst: C:\Windows\system32\d3dx9_27.dll have been installed already.
11/17/13 14:40:56: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\d3dx9_28_x64.inf [DefaultInstall]
11/17/13 14:40:57: infinst: Target file: 'C:\Windows\system32\d3dx9_28.dll'
Target file is Version 9.10.455.0
Source file is Version 9.10.455.0
11/17/13 14:40:57: infinst: C:\Windows\system32\d3dx9_28.dll have been installed already.
11/17/13 14:40:57: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\d3dx9_29_x64.inf [DefaultInstall]
11/17/13 14:40:58: infinst: Target file: 'C:\Windows\system32\d3dx9_29.dll'
Target file is Version 9.11.519.0
Source file is Version 9.11.519.0
11/17/13 14:40:58: infinst: C:\Windows\system32\d3dx9_29.dll have been installed already.
11/17/13 14:40:59: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\XACT_x64.inf [DefaultInstall]
11/17/13 14:40:59: infinst: Target file: 'C:\Windows\system32\xactengine2_0.dll'
Target file is Version 9.11.519.0
Source file is Version 9.11.519.0
11/17/13 14:40:59: infinst: C:\Windows\system32\xactengine2_0.dll have been installed already.
11/17/13 14:40:59: infinst: Target file: 'C:\Windows\system32\x3daudio1_0.dll'
Target file is Version 9.11.519.0
Source file is Version 9.11.519.0
11/17/13 14:40:59: infinst: C:\Windows\system32\x3daudio1_0.dll have been installed already.
11/17/13 14:41:00: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\d3dx9_30_x64.inf [DefaultInstall]
11/17/13 14:41:01: infinst: Target file: 'C:\Windows\system32\d3dx9_30.dll'
Target file is Version 9.12.589.0
Source file is Version 9.12.589.0
11/17/13 14:41:01: infinst: C:\Windows\system32\d3dx9_30.dll have been installed already.
11/17/13 14:41:25: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\XACT2_1_x64.inf [DefaultInstall]
11/17/13 14:41:25: infinst: Target file: 'C:\Windows\system32\xactengine2_1.dll'
Target file is Version 9.12.589.0
Source file is Version 9.12.589.0
11/17/13 14:41:25: infinst: C:\Windows\system32\xactengine2_1.dll have been installed already.
11/17/13 14:41:25: infinst: Target file: 'C:\Windows\system32\x3daudio1_0.dll'
Target file is Version 9.11.519.0
Source file is Version 9.11.519.0
11/17/13 14:41:25: infinst: C:\Windows\system32\x3daudio1_0.dll have been installed already.
11/17/13 14:41:25: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\xinput1_1_x64.inf [Install_Driver]
11/17/13 14:41:25: infinst: Target file: 'C:\Windows\system32\xinput1_1.dll'
Target file is Version 9.12.589.0
Source file is Version 9.12.589.0
11/17/13 14:41:25: infinst: C:\Windows\system32\xinput1_1.dll have been installed already.
11/17/13 14:41:25: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\XACT2_2_x64.inf [DefaultInstall]
11/17/13 14:41:25: infinst: Target file: 'C:\Windows\system32\xactengine2_2.dll'
Target file is Version 9.13.644.0
Source file is Version 9.13.644.0
11/17/13 14:41:25: infinst: C:\Windows\system32\xactengine2_2.dll have been installed already.
11/17/13 14:41:25: infinst: Target file: 'C:\Windows\system32\x3daudio1_0.dll'
Target file is Version 9.11.519.0
Source file is Version 9.11.519.0
11/17/13 14:41:25: infinst: C:\Windows\system32\x3daudio1_0.dll have been installed already.
11/17/13 14:41:26: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\xinput1_2_x64.inf [Install_Driver]
11/17/13 14:41:26: infinst: Target file: 'C:\Windows\system32\xinput1_2.dll'
Target file is Version 9.14.701.0
Source file is Version 9.14.701.0
11/17/13 14:41:26: infinst: C:\Windows\system32\xinput1_2.dll have been installed already.
11/17/13 14:41:26: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\XACT2_3_x64.inf [DefaultInstall]
11/17/13 14:41:26: infinst: Target file: 'C:\Windows\system32\xactengine2_3.dll'
Target file is Version 9.14.701.0
Source file is Version 9.14.701.0
11/17/13 14:41:26: infinst: C:\Windows\system32\xactengine2_3.dll have been installed already.
11/17/13 14:41:26: infinst: Target file: 'C:\Windows\system32\x3daudio1_0.dll'
Target file is Version 9.11.519.0
Source file is Version 9.11.519.0
11/17/13 14:41:26: infinst: C:\Windows\system32\x3daudio1_0.dll have been installed already.
11/17/13 14:41:27: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\d3dx9_31_x64.inf [DefaultInstall]
11/17/13 14:41:27: infinst: Target file: 'C:\Windows\system32\d3dx9_31.dll'
Target file is Version 9.15.779.0
Source file is Version 9.15.779.0
11/17/13 14:41:27: infinst: C:\Windows\system32\d3dx9_31.dll have been installed already.
11/17/13 14:41:27: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\XACT2_4_x64.inf [DefaultInstall]
11/17/13 14:41:27: infinst: Target file: 'C:\Windows\system32\xactengine2_4.dll'
Target file is Version 9.15.779.0
Source file is Version 9.15.779.0
11/17/13 14:41:27: infinst: C:\Windows\system32\xactengine2_4.dll have been installed already.
11/17/13 14:41:28: infinst: Target file: 'C:\Windows\system32\x3daudio1_1.dll'
Target file is Version 9.15.779.0
Source file is Version 9.15.779.0
11/17/13 14:41:28: infinst: Currently C:\Windows\system32\x3daudio1_1.dll is newer than the one being installed.
11/17/13 14:41:28: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\d3dx9_32_x64.inf [DefaultInstall]
11/17/13 14:41:29: infinst: Target file: 'C:\Windows\system32\d3dx9_32.dll'
Target file is Version 9.16.843.0
Source file is Version 9.16.843.0
11/17/13 14:41:29: infinst: C:\Windows\system32\d3dx9_32.dll have been installed already.
11/17/13 14:41:30: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\d3dx10_00_x64.inf [DefaultInstall]
11/17/13 14:41:31: infinst: Target file: 'C:\Windows\system32\d3dx10.dll'
Target file is Version 9.16.843.0
Source file is Version 9.16.843.0
11/17/13 14:41:31: infinst: C:\Windows\system32\d3dx10.dll have been installed already.
11/17/13 14:41:32: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\XACT2_5_x64.inf [DefaultInstall]
11/17/13 14:41:32: infinst: Target file: 'C:\Windows\system32\xactengine2_5.dll'
Target file is Version 9.16.857.0
Source file is Version 9.16.857.0
11/17/13 14:41:32: infinst: C:\Windows\system32\xactengine2_5.dll have been installed already.
11/17/13 14:41:32: infinst: Target file: 'C:\Windows\system32\x3daudio1_1.dll'
Target file is Version 9.15.779.0
Source file is Version 9.15.779.0
11/17/13 14:41:32: infinst: Currently C:\Windows\system32\x3daudio1_1.dll is newer than the one being installed.
11/17/13 14:41:33: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\XACT2_6_x64.inf [DefaultInstall]
11/17/13 14:41:33: infinst: Target file: 'C:\Windows\system32\xactengine2_6.dll'
Target file is Version 9.17.892.0
Source file is Version 9.17.892.0
11/17/13 14:41:33: infinst: C:\Windows\system32\xactengine2_6.dll have been installed already.
11/17/13 14:41:33: infinst: Target file: 'C:\Windows\system32\x3daudio1_1.dll'
Target file is Version 9.15.779.0
Source file is Version 9.15.779.0
11/17/13 14:41:33: infinst: Currently C:\Windows\system32\x3daudio1_1.dll is newer than the one being installed.
11/17/13 14:41:34: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\d3dx9_33_x64.inf [DefaultInstall]
11/17/13 14:41:34: infinst: Target file: 'C:\Windows\system32\d3dx9_33.dll'
Target file is Version 9.18.904.15
Source file is Version 9.18.904.15
11/17/13 14:41:34: infinst: C:\Windows\system32\d3dx9_33.dll have been installed already.
11/17/13 14:41:34: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\d3dx10_33_x64.inf [DefaultInstall]
11/17/13 14:41:34: infinst: Target file: 'C:\Windows\system32\d3dx10_33.dll'
Target file is Version 9.18.904.21
Source file is Version 9.18.904.21
11/17/13 14:41:34: infinst: C:\Windows\system32\d3dx10_33.dll have been installed already.
11/17/13 14:41:34: infinst: Target file: 'C:\Windows\system32\D3DCompiler_33.dll'
Target file is Version 9.18.904.15
Source file is Version 9.18.904.15
11/17/13 14:41:34: infinst: C:\Windows\system32\D3DCompiler_33.dll have been installed already.
11/17/13 14:41:34: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\XACT2_7_x64.inf [DefaultInstall]
11/17/13 14:41:34: infinst: Target file: 'C:\Windows\system32\xactengine2_7.dll'
Target file is Version 9.18.944.0
Source file is Version 9.18.944.0
11/17/13 14:41:34: infinst: C:\Windows\system32\xactengine2_7.dll have been installed already.
11/17/13 14:41:34: infinst: Target file: 'C:\Windows\system32\x3daudio1_1.dll'
Target file is Version 9.15.779.0
Source file is Version 9.15.779.0
11/17/13 14:41:34: infinst: C:\Windows\system32\x3daudio1_1.dll have been installed already.
11/17/13 14:41:34: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\xinput1_3_x64.inf [Install_Driver]
11/17/13 14:41:34: infinst: Target file: 'C:\Windows\system32\xinput1_3.dll'
Target file is Version 9.18.944.0
Source file is Version 9.18.944.0
11/17/13 14:41:34: infinst: C:\Windows\system32\xinput1_3.dll have been installed already.
11/17/13 14:41:35: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\d3dx9_34_x64.inf [DefaultInstall]
11/17/13 14:41:35: infinst: Target file: 'C:\Windows\system32\d3dx9_34.dll'
Target file is Version 9.19.949.46
Source file is Version 9.19.949.46
11/17/13 14:41:35: infinst: C:\Windows\system32\d3dx9_34.dll have been installed already.
11/17/13 14:41:35: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\d3dx10_34_x64.inf [DefaultInstall]
11/17/13 14:41:35: infinst: Target file: 'C:\Windows\system32\d3dx10_34.dll'
Target file is Version 9.19.949.46
Source file is Version 9.19.949.46
11/17/13 14:41:35: infinst: C:\Windows\system32\d3dx10_34.dll have been installed already.
11/17/13 14:41:35: infinst: Target file: 'C:\Windows\system32\D3DCompiler_34.dll'
Target file is Version 9.19.949.46
Source file is Version 9.19.949.46
11/17/13 14:41:35: infinst: C:\Windows\system32\D3DCompiler_34.dll have been installed already.
11/17/13 14:41:36: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\XACT2_8_x64.inf [DefaultInstall]
11/17/13 14:41:36: infinst: Target file: 'C:\Windows\system32\xactengine2_8.dll'
Target file is Version 9.19.1007.0
Source file is Version 9.19.1007.0
11/17/13 14:41:36: infinst: C:\Windows\system32\xactengine2_8.dll have been installed already.
11/17/13 14:41:36: infinst: Target file: 'C:\Windows\system32\x3daudio1_2.dll'
Target file is Version 9.21.1148.0
Source file is Version 9.19.1007.0
11/17/13 14:41:36: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\d3dx9_35_x64.inf [DefaultInstall]
11/17/13 14:41:36: infinst: Target file: 'C:\Windows\system32\d3dx9_35.dll'
Target file is Version 9.19.949.1104
Source file is Version 9.19.949.1104
11/17/13 14:41:36: infinst: C:\Windows\system32\d3dx9_35.dll have been installed already.
11/17/13 14:41:37: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\d3dx10_35_x64.inf [DefaultInstall]
11/17/13 14:41:37: infinst: Target file: 'C:\Windows\system32\d3dx10_35.dll'
Target file is Version 9.19.949.1104
Source file is Version 9.19.949.1104
11/17/13 14:41:37: infinst: C:\Windows\system32\d3dx10_35.dll have been installed already.
11/17/13 14:41:37: infinst: Target file: 'C:\Windows\system32\D3DCompiler_35.dll'
Target file is Version 9.19.949.1104
Source file is Version 9.19.949.1104
11/17/13 14:41:37: infinst: C:\Windows\system32\D3DCompiler_35.dll have been installed already.
11/17/13 14:41:37: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\XACT2_9_x64.inf [DefaultInstall]
11/17/13 14:41:37: infinst: Target file: 'C:\Windows\system32\xactengine2_9.dll'
Target file is Version 9.20.1057.0
Source file is Version 9.20.1057.0
11/17/13 14:41:37: infinst: C:\Windows\system32\xactengine2_9.dll have been installed already.
11/17/13 14:41:37: infinst: Target file: 'C:\Windows\system32\x3daudio1_2.dll'
Target file is Version 9.21.1148.0
Source file is Version 9.20.1057.0
11/17/13 14:41:38: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\d3dx9_36_x64.inf [DefaultInstall]
11/17/13 14:41:38: infinst: Target file: 'C:\Windows\system32\d3dx9_36.dll'
Target file is Version 9.19.949.2111
Source file is Version 9.19.949.2111
11/17/13 14:41:38: infinst: C:\Windows\system32\d3dx9_36.dll have been installed already.
11/17/13 14:41:39: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\d3dx10_36_x64.inf [DefaultInstall]
11/17/13 14:41:39: infinst: Target file: 'C:\Windows\system32\d3dx10_36.dll'
Target file is Version 9.19.949.2009
Source file is Version 9.19.949.2009
11/17/13 14:41:39: infinst: C:\Windows\system32\d3dx10_36.dll have been installed already.
11/17/13 14:41:39: infinst: Target file: 'C:\Windows\system32\D3DCompiler_36.dll'
Target file is Version 9.19.949.2111
Source file is Version 9.19.949.2111
11/17/13 14:41:39: infinst: C:\Windows\system32\D3DCompiler_36.dll have been installed already.
11/17/13 14:41:39: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\X3DAudio1_2_x64.inf [DefaultInstall]
11/17/13 14:41:39: infinst: Target file: 'C:\Windows\system32\X3DAudio1_2.dll'
Target file is Version 9.21.1148.0
Source file is Version 9.21.1148.0
11/17/13 14:41:39: infinst: C:\Windows\system32\X3DAudio1_2.dll have been installed already.
11/17/13 14:41:39: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\XACT2_10_x64.inf [DefaultInstall]
11/17/13 14:41:39: infinst: Target file: 'C:\Windows\system32\xactengine2_10.dll'
Target file is Version 9.21.1148.0
Source file is Version 9.21.1148.0
11/17/13 14:41:39: infinst: C:\Windows\system32\xactengine2_10.dll have been installed already.
11/17/13 14:41:39: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\D3DX9_37_x64.inf [DefaultInstall]
11/17/13 14:41:40: infinst: Target file: 'C:\Windows\system32\D3DX9_37.dll'
Target file is Version 9.22.949.2248
Source file is Version 9.22.949.2248
11/17/13 14:41:40: infinst: C:\Windows\system32\D3DX9_37.dll have been installed already.
11/17/13 14:41:40: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\d3dx10_37_x64.inf [DefaultInstall]
11/17/13 14:41:40: infinst: Target file: 'C:\Windows\system32\d3dx10_37.dll'
Target file is Version 9.19.949.2185
Source file is Version 9.19.949.2185
11/17/13 14:41:40: infinst: C:\Windows\system32\d3dx10_37.dll have been installed already.
11/17/13 14:41:40: infinst: Target file: 'C:\Windows\system32\D3DCompiler_37.dll'
Target file is Version 9.22.949.2248
Source file is Version 9.22.949.2248
11/17/13 14:41:40: infinst: C:\Windows\system32\D3DCompiler_37.dll have been installed already.
11/17/13 14:41:41: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\X3DAudio1_3_x64.inf [DefaultInstall]
11/17/13 14:41:41: infinst: Target file: 'C:\Windows\system32\X3DAudio1_3.dll'
Target file is Version 9.22.1284.0
Source file is Version 9.22.1284.0
11/17/13 14:41:41: infinst: C:\Windows\system32\X3DAudio1_3.dll have been installed already.
11/17/13 14:41:41: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\XACT3_0_x64.inf [DefaultInstall]
11/17/13 14:41:41: infinst: Target file: 'C:\Windows\system32\xactengine3_0.dll'
Target file is Version 9.22.1284.0
Source file is Version 9.22.1284.0
11/17/13 14:41:41: infinst: C:\Windows\system32\xactengine3_0.dll have been installed already.
11/17/13 14:41:41: infinst: Installing C:\Users\Utente\AppData\Local\Temp\DXFE0E.tmp\XAudio2_0_x64.inf [DefaultInstall]
11/17/13 14:41:41: infinst: Target file: 'C:\Windows\system32\XAudio2_0.dll'
Target file is Version 9.22.1284.0
Source file is Version 9.22.1284.0
11/17/13 14:41:41: infinst: C:\Windows\system32\XAudio2_0.dll have been installed already.