If you are not familiar with the procedure of installing Windows Vista service packs, read this article for more information. The installation of a Windows Vista service pack is a simple process, and it makes all the required changes to the computer. You can update your system to the latest version for free using Windows Update. However, you need to install this update before you can install the April 2015 Servicing Stack Update and the Convenience Rollup.
Before you upgrade to a new version of Vista, you need to install the Windows Vista Service Pack (SP1). SP1 is the first of three installments in the Windows Vista line, and it brings many improvements to the operating system. The new features in this release are mostly evolutionary, not revolutionary, which means that you will have to download them separately. But, if you are already running a version of Vista, you can install SP1 for it.
Although the new update contains new features, it does not fix the problems that plagued Vista. Instead, it introduces new ones. For one, Microsoft bows to competitors by letting developers access the impervious kernel in x64 versions of the operating system, and it gouges out the innovative Instant Search UI that was so ahead of its time that competitors copied it. Furthermore, Microsoft's deployment plan for SP1 is absurd and will not matter once 2008 gets underway.