Windows Update is Microsoft's delivery platform for downloading and installing updates to fix problems found in the Microsoft operating system or other related software.
Windows Update is also the platform where you can download new features, add-ons, and Ultimate Extras if you are running Windows Vista.
The System Properties dialog box might not look like much, but it controls some very powerful configuration options.
Don't worry, all the functions that existed in previous versions of Windows are still available; they are just accessed from different areas now (mostly from the Control Panel).
Microsoft routinely releases security updates on the second Tuesday of each month (Patch Tuesday), but can provide them whenever a new update is urgently required to prevent a newly discovered or prevalent exploit targeting Windows users.
System administrators can configure Windows Update to install critical updates automatically so long as the computer has an Internet mobile connection, without the user needing to install them manually, or even be aware that an update is required.
It can also be made less obnoxious with a few quick settings changes.This allows system administrators to schedule updates all at once.However, if a security flaw is being exploited in the wild, important security patches may be released immediately.To open the Windows Update Control Panel tool, press the Windows key on your computer, type “Update” without quotes, and click the Windows Update shortcut that appears.On Windows 8, you’ll have to click the Settings option before you see the Windows Update shortcut.When software is created, whether it be operating systems or games, there is a good chance that a bug or security hole will rear its head over time.