3.2. Windows Update - Applying Updates

If there are updates available then you'll see one of the following Windows, depending upon whether you chose to do Express or Custom updates.

If you chose to check for Express updates then you'll see a window like that shown below:

Windows Update - Express UpdatesWindows Update - Express Updates

The main pane of the window shows each of the applicable updates. The update often has a reference in brackets following it, such as KB072270, this is a reference used by Microsoft for the update to which it applies and is know as the KnowledgeBase reference. You can visit the Microsoft website (http://www.microsoft.com) and search for this reference to get more information about the update to which it refers.

If you selected Custom you'll see the following :

Windows Update - Custom UpdatesWindows Update - Custom Updates

As with the Express updates the main pane of the windows shows each applicable update (note that there may be more updates than with the Express update results because of updates which may be available but not considered as required for maintaining the security of your system and are therefore only included when performing a Custom update.
The updates are also categorized in the left pane of the main window, displayed both by Type and by Product.

Windows Update - Custom UpdatesWindows Update - Custom Updates

Clicking on [+] icon next to each update will expand the entry somewhat, giving a little more information about what the update is required for. There's also a details details link which you can click to get more information in a pop-up window from the microsoft web-site.

Windows Update - DetailsWindows Update - Details

Select, from the main pane, the updates you wish to apply (note that after a Custom search only the High-Priority updates will be automatically selected. Then click the Install Updates link.
The updates will now be downloaded and installed, progress during this operation will be displayed in a window like this :

Windows Update - WorkingWindows Update - Working

After all the updates are applied you may be prompted to reboot, if this is the case you should do so.

Windows Update - RestartWindows Update - Restart

The first time you run Windows Update, or if you have run the Custom scan and installed non-critical updates, you should run Windows Update from the Start Menu again. There may be more critical updates to apply before your computer is completely updated.
As a rough guideline, a computer with a clean Windows install which includes the service pack 2 (a service pack is a special update of Windows which includes all previous security updates and is shipped to computer manufacturers so that all new installations are more nearly up-to-date) may require Windows Update to be run five or more times, with a reboot after each set of updates.