Installing SP1 using an installation DVD

You can order a DVD from Microsoft containing SP1. You’ll need to choose either the 32-bit or 64-bit version of SP1, depending on whether you’re running a 32-bit or 64-bit version of Windows 7. For more information, go to Get Windows 7 Service Pack 1 (SP1) on DVD on the Windows website.

• To find out which version you’re running, click the Start button , right-click Computer, and then click Properties. Under System, next to System type, you can view the operating system.

1. Insert the DVD into your computer with your current version of Windows 7 running. The Install Windows Service Pack wizard should automatically appear.

If the wizard doesn’t appear, click the Start button , click Computer, right-click the drive containing the installation disc, and then click Install or run program.

1. On the Install Windows 7 Service Pack 1 page, click Next.
2. Follow the instructions on your screen. The computer might restart several times during the installation.
3. After installation is complete, log on to your computer at the Windows logon prompt. You’ll receive a message indicating whether the update was successful.
4. If you disabled your antivirus software, enable it again.

Cr. http://windows.microsoft.com/