I haveWindows Vista Home Premium, Service Pack 1, 32-bitOperating System.

My Windows Updater has been trying to installMicrosoft .NET Framework 3.5 Service Pack 1 and .NET Framework 3.5 Family Update (KB951847) x86 since June, always unsuccessfully. I have followed up onerror codes (often it is: 800B0100)and downloaded extra tools (e.g. system readiness tool KB947821)but still have not been able to successfuly install the update.

I also tried downloading the 3.5 Service Pack 1 on its own from Microsoft download center.When installing I receive the following error:

[09/16/09,09:56:48] Microsoft .NET Framework 3.0SP1 (CBS): [2] Error: Installation failed for component Microsoft .NET Framework 3.0SP1 (CBS). MSI returned error code -2146762496
[09/16/09,09:56:58] WapUI: [2] DepCheck indicates Microsoft .NET Framework 3.0SP1 (CBS) is not installed.

Thanks for any suggestions!