Installing Windows 7 Service Pack 1

This document provides general information that you should know before installing Windows 7 Service Pack 1 (SP1). Both this document and the installation wizard will guide you through the installation process.

You can use SP1 to update all editions of Windows 7.

Contents

Before you begin
Installing SP1
Uninstalling SP1
Resources for advanced users and system administrators
Copyright

Before you begin

Before you install SP1, do the following:

• Log on to your computer using an administrator account, make sure all other users are logged off the computer, and close all open programs.
• If you have any beta versions of SP1 installed, uninstall them before installing the final released version of SP1. To do this, follow the instructions in Uninstalling SP1.
• Back up your files to an external location, such as an external hard disk, DVD or CD, USB flash drive, or network folder.
• If you’re using a laptop computer, connect it to an AC electrical outlet and don’t unplug or restart the computer during installation.
• Update any device drivers as necessary. You can do this by using Windows Update in Control Panel, or by going to the device manufacturer’s website.
• If you have an uninterruptible power supply (UPS) connected to your computer, disconnect the connecting serial cable before installing SP1. The installation automatically attempts to detect devices connected to serial ports, and UPS equipment can cause problems with the detection process. It’s fine to leave your computer connected to a UPS to supply power.
• Some antivirus software might prevent SP1 from installing, or might slow down the installation. You can try temporarily disabling your antivirus software. If you do so, be sure that you’re aware of the risks involved, and be sure to re-enable it after the service pack is installed.
• Make sure you have enough free disk space to install SP1 (even though much of that space will be reclaimed after the installation). For more information, go to Strategies for freeing disk space on the Windows website.

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  Installing SP1

  You’ll need to choose either the 32-bit version or the 64-bit version of SP1, depending on whether you’re running a 32-bit or 64-bit version of Windows 7.

  To find out which version you’re running, click the Start button, right-click Computer, and then click Properties. In the System section, you can view the operating system under System type.

  To install SP1:

  1. On the Install Windows 7 Service Pack 1 page, click Next.
  2. Follow the instructions on your screen. Your computer might restart as part of the installation. Don’t unplug or shut down your computer during the installation.
  3. If you disabled your antivirus software before installing the service pack, re-enable it after installation is complete.

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  Uninstalling SP1

  To uninstall SP1:

  1. Click the Start button, click Control Panel, and then click Programs.
  2. Under Programs and Features, click View installed updates.
  3. On the Uninstall an update page, click Service Pack for Microsoft Windows (KB976932), and then click Uninstall.
  4. Follow the instructions on your screen.

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  Resources for advanced users and system administrators

  To find additional information, such as release notes and the SP1 deployment guide, go to the Windows 7 Service Pack 1 webpage on the Microsoft TechNet website.

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  Copyright

  This document is provided “as-is.” Information and views expressed in this document, including URL and other Internet website references, may change without notice. You bear the risk of using it.

  This document doesn’t provide you with any legal rights to any intellectual property in any Microsoft product. You may copy and use this document for your internal, reference purposes.

  © 2011 Microsoft. All rights reserved.

  Microsoft and Windows are trademarks of the Microsoft group of companies. All other trademarks are property of their respective owners.

Source:  Windows 7 Service Pack 1 Install