I am "refurbing" a friends computer and have been running into failed update issues. These are Silverlight security update as well as dotnet upgrades. Dotnet 1.1 would not update so uninstalled it and ran dotnetfx and then reinstalled via windows update. That seems successful. Have run microsoft fixit for windows update but the problem persists. Now the update for dotnet 3.5 won't install. Any easy fixes for this nonsense?