Operating system suppliers often release security updates to help protect your computer against viruses and other security threats. The update software scans your computer, works out what updates it requires and sends this information back to the supplier so that the required updates can be downloaded. Suppliers also provide updates to applications and tools to guard against threats and improve the performance of your computer.
For example, Microsoft Windows 7 uses a feature called Windows Update to help keep your computer up-to-date. Updates take place in the background without interrupting your work. Windows Update lets you carry out the following tasks:
- check for the updates available, change settings, view your update history, restore hidden updates and view frequently asked questions
- download and install security updates automatically at a predefined time and frequency
- download language packs
- install other recommended updates as well as critical updates
- check for updates to installed applications
Next: Using Windows Update