Windows Update allows you to install security updates, drivers, service packs and feature updates for your PC. To update Windows, click Start then All Programs and Windows Update, which will scan your system and allow you to click Express to follow the prompts and install any required updates, a process that can take some time.

1. How to Update Windows. Windows Update provides your PC with security and reliability updates, drivers, service packs, and feature updates

2. Click start

3. Click All Programs, Windows Update

4. After Clicking you will get this screen, it might take a while to come up

5. Click Express.. follow the prompts, this window will take quite some time. It is actually scanning your system to figure out which updates it requires