“Windows 7 service pack 1” is scheduled for release within the next two weeks. Most of the impact of SP1 comes from the collection of previously released updates. There are only modest new changes which includes fixes for issues with HDMI audio device performance , printing with XPS documents with mixed landscape/portrait orientation and restoring folders to their previous positions after restarts.
It is advisable install it through Windows Update as it provides an express installation of the service pack, downloading only the minimum files required to update your PC. Aside from reducing the size of the download, disk space requirement and making the installation quicker it also enables you to work around several potential installation issues compared with a full download of the standalone update .
Notice:
It is recommended that you backup critical data, and ensure the PC is in a properly working state before installing a service pack. If you are installing on a portable computer, plug it in so that it is not running on battery power.
