Summary:
Windows 7 Service Pack 1 (SP1) is now available. Windows 7 SP1 is an update to Windows 7 that contains previously released fixes to specific reliability, performance, and compatibility issues. We recommend that you use Windows Update to install SP1. For more information about how to install SP1 by using Windows Update, see How to install Windows 7 SP1 .
A Windows 7 SP1 Network Installation Package for IT Professionals and Developers is also available at the Microsoft Download Center .
Important: If you are updating just one computer, do not download the SP1 Network Installation Package from the Microsoft Download Center. A smaller, more appropriate download is available from Windows Update . If Windows Update does not offer you the option to install the service pack, see Microsoft Knowledge Base article 2498452. If you are encountering a problem when you install the service pack from Windows Update, see Troubleshoot problems installing a service pack for Windows 7 .
If you decide to install SP1 from the Microsoft Download Center, you can take some steps beforehand to make sure that you have a good experience. This article contains some suggestions.
More Information:
Before you install SP1 from the Microsoft Download Center , make sure that you follow these steps.
Step 1: Back up your important files
Back up your files to an external hard disk, DVD or CD, USB flash drive, or network folder. For information about how to back up your files, see Back up your files .
Step 2: Update device drivers
Update device drivers as necessary. You can do this by using Windows Update in Control Panel or by going to the device manufacturer's website.
Important: If you are using an Intel integrated graphics device, you should be aware that there are known issues with certain versions of the Intel integrated graphics device driver and with D2D enabled applications, such as certain versions of Windows Live Mail. The versions of the Intel integrated graphics device driver that are known to be problematic are Igdkmd32.sys and Igdkmd64.sys versions 8.15.10.2104 through 8.15.10.2141. For more information about a known issue with these drivers and with Windows Live Mail, see Microsoft Knowledge Base article 2505524 (http://support.microsoft.com/kb/2505524) .
To check whether you are using the Intel integrated graphics device driver Igdkmd32.sys or Igdkmd64.sys versions 8.15.10.2104 through 8.15.10.2141, follow these steps:
Step 3: Check Windows Update to see if you are offered the option to Install Windows Update KB2454826, KB2534366, or KB2533552
Run Windows Update and if you are offered the option to install update KB2454826, KB2534366, or KB2533552 install them. If you install the service pack from the Microsoft Download Center and do not install these updates, you could encounter a Stop error in Windows in rare cases.
These updates will automatically be installed when you install the service pack by using Windows Update. However, these updates are not automatically installed when you install the service pack from the Microsoft Download Center.
To check whether these updates are installed, click Start, type View installed updates in the Search programs and files box, and then press Enter. Notice whether Update for Microsoft Windows (KB2454826), Update for Microsoft Windows (KB2534366), or Update for Microsoft Windows (KB2533552) are listed. If the update is not listed, you will have to install it from Windows Update .
Step 4: Check for malware
Check your computer for malware by using antivirus software. Some antivirus software is sold together with annual subscriptions that can be renewed as needed. However, much antivirus software is also available for free. Microsoft offers Microsoft Security Essentials, free antivirus software that you can download from the Microsoft Security Essentials (http://go.microsoft.com/fwlink/?LinkId=168949) website. You can also visit the Microsoft Consumer security software providers (http://go.microsoft.com/fwlink/?LinkId=135654) webpage to find third-party antivirus software.
Important: If your computer is infected with malware and you install Windows 7 SP1, you could encounter blue screens or a Windows Update error such as 8007f0f4 or FFFFFFFF. If malware is detected, Windows Update will be unable to install SP1.
More installation notes
More Resources:
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
971759 How to back up or transfer your data on a Windows-based computer?
For more information about Windows Update error 8007f0f4 or FFFFFFFF, see Windows Update error 8007f0f4 or FFFFFFFF .
The information in this article applies to:
Keywords: MS Article ID KB2505743 2505743
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