3.2.1 Obtaining patches and updates
Start Internet Explorer.
Choose Tools > Windows update from the drop-down menu at the top of the browser screen.
(Note: if you are using a computer at work that is controlled by an IT group this option may be missing, as it can be disabled in a corporate environment.)
If you are unable to find the 'update' option, you could try the Microsoft update site.
Follow the on-screen option to scan your computer and see the number of updates that are available to you.
We suggest that you do not install all of the updates at present, as they would take a long time to download. In addition, some updates have to be installed separately, and this would increase the download time even more. But you should consider getting the critical updates as soon as possible.
Alternatively you can read about security issues, and what you can do to improve your security, at the Microsoft Security at home website.