Luisa, First, ensure that these Services are set to these Startup types: Background Intelligent Transfer Service (BITS) – Manual Windows Event Log – Automatic Windows Installer – Manual Windows Modules Installer – Manual Windows Update – Automatic (Delayed Start) If they are or were, suggest you clean boot Vista:

Start a free Windows Update support incident request: [link] Support for Windows Update: [link] For home users, no-charge support is available by calling …