ok
ho seguito tutti i passaggi suggeriti nel thread indicato, ma non sono riuscito a risolvere il problema
Questo è il messaggio di errore
OS Version = 6.0.6002, Platform 2, Service Pack 2
OS Description = Vista - x86 Business Edition Service Pack 2
CommandLine = D:\7ffb906b6f9fc1e4362be192a0981e02\Setup.exe /x86 /x64
TimeZone = ora legale Europa occidentale
Initial LCID = 1040
Using Simultaneous Download and Install mechanism
Operation: Installing
Package Name = Microsoft .NET Framework 4 Setup
Package Version = 4.0.30319
User Experience Data Collection Policy: Disabled
Number of applicable items: 11
returning false
Exe (D:\7ffb906b6f9fc1e4362be192a0981e02\SetupUtility.exe) succeeded.
Exe Log File: dd_SetupUtility.txt
ServiceControl operation succeeded!
Exe (D:\7ffb906b6f9fc1e4362be192a0981e02\Windows6.0-KB956250-v6001-x86.msu) failed with 0x1 - Funzione non corretta. .
Exe (D:\7ffb906b6f9fc1e4362be192a0981e02\SetupUtility.exe) succeeded.
Exe Log File: dd_SetupUtility.txt
MSI (D:\7ffb906b6f9fc1e4362be192a0981e02\netfx_Core_x86.msi) Installation failed. Msi Log: Microsoft .NET Framework 4 Setup_20160525_151622522-MSI_netfx_Core_x86.msi.txt
Exe (D:\7ffb906b6f9fc1e4362be192a0981e02\SetupUtility.exe) succeeded.
Exe Log File: dd_SetupUtility.txt
MSI (D:\7ffb906b6f9fc1e4362be192a0981e02\netfx_Core_x86.msi) Installation failed. Msi Log: Microsoft .NET Framework 4 Setup_20160525_151622522-MSI_netfx_Core_x86.msi.txt
Final Result: Installation failed with error code: (0x80070643), "Errore irreversibile durante l'installazione. " (Elapsed time: 0 00:08:20).