pues intento instalar el 3.5 y me salta este error no se que hacer
[01/12/11,22:07:04] Microsoft .NET Framework 2.0a: [2] Failed to fetch setup file in CBaseComponent::PreInstall() [01/12/11,22:07:04] setup.exe: [2] ISetupComponent::Pre/Post/Install() failed in ISetupManager::InternalInstallManager() with HRESULT -2147467260. [01/12/11,22:07:04] setup.exe: [2] CSetupManager::RunInstallPhase() - Call to Pre/Install/Post for InstallComponents failed [01/12/11,22:07:04] setup.exe: [2] CSetupManager::RunInstallPhaseAndCheckResults() - RunInstallPhase() returned a NULL piActionResults [01/12/11,22:07:04] setup.exe: [2] CSetupManager::RunInstallFromList() - RunInstallPhaseAndCheckResults failed [2] [01/12/11,22:07:04] setup.exe: [2] ISetupManager::RunInstallLists(IP_PREINSTALL failed in ISetupManager::RunInstallFromThread() [01/12/11,22:07:04] setup.exe: [2] ISetupManager::RunInstallFromThread() failed in ISetupManager::RunInstall() [01/12/11,22:07:04] setup.exe: [2] CSetupManager::Run() - Call to RunInstall() failed [01/12/11,22:07:05] WapUI: [2] DepCheck indicates Microsoft .NET Framework 2.0a is not installed. [01/12/11,22:07:05] WapUI: [2] DepCheck indicates XPSEPSC Installer was not attempted to be installed. [01/12/11,22:07:05] WapUI: [2] DepCheck indicates Microsoft .NET Framework 3.0a was not attempted to be installed. [01/12/11,22:07:05] WapUI: [2] DepCheck indicates Microsoft .NET Framework 3.5 'package' was not attempted to be installed. [01/12/11,22:07:05] WapUI: [2] DepCheck indicates Microsoft .NET Framework 3.5LP - ESN was not attempted to be installed. [01/12/11,22:09:35] Microsoft .NET Framework 2.0a: [2] Failed to fetch setup file in CBaseComponent::PreInstall() [01/12/11,22:09:35] setup.exe: [2] ISetupComponent::Pre/Post/Install() failed in ISetupManager::InternalInstallManager() with HRESULT -2147467260. [01/12/11,22:09:35] setup.exe: [2] CSetupManager::RunInstallPhase() - Call to Pre/Install/Post for InstallComponents failed [01/12/11,22:09:35] setup.exe: [2] CSetupManager::RunInstallPhaseAndCheckResults() - RunInstallPhase() returned a NULL piActionResults [01/12/11,22:09:35] setup.exe: [2] CSetupManager::RunInstallFromList() - RunInstallPhaseAndCheckResults failed [2] [01/12/11,22:09:35] setup.exe: [2] ISetupManager::RunInstallLists(IP_PREINSTALL failed in ISetupManager::RunInstallFromThread() [01/12/11,22:09:35] setup.exe: [2] ISetupManager::RunInstallFromThread() failed in ISetupManager::RunInstall() [01/12/11,22:09:35] setup.exe: [2] CSetupManager::Run() - Call to RunInstall() failed [01/12/11,22:09:35] WapUI: [2] DepCheck indicates Microsoft .NET Framework 2.0a is not installed. [01/12/11,22:09:35] WapUI: [2] DepCheck indicates XPSEPSC Installer was not attempted to be installed. [01/12/11,22:09:35] WapUI: [2] DepCheck indicates Microsoft .NET Framework 3.0a was not attempted to be installed. [01/12/11,22:09:35] WapUI: [2] DepCheck indicates Microsoft .NET Framework 3.5 'package' was not attempted to be installed. [01/12/11,22:09:35] WapUI: [2] DepCheck indicates Microsoft .NET Framework 3.5LP - ESN was not attempted to be installed. [01/12/11,23:20:53] Microsoft .NET Framework 2.0a: [2] Error: Installation failed for component Microsoft .NET Framework 2.0a. MSI returned error code 1601 [01/12/11,23:20:59] WapUI: [2] DepCheck indicates Microsoft .NET Framework 2.0a is not installed. [01/12/11,23:25:51] Microsoft .NET Framework 2.0a: [2] Error: Installation failed for component Microsoft .NET Framework 2.0a. MSI returned error code 1601 [01/12/11,23:25:58] WapUI: [2] DepCheck indicates Microsoft .NET Framework 2.0a is not installed.