- Windows SP1 is already installed, or a prerelease version of Windows 7 SP1 has not yet been uninstalled.
- Another update has to be installed before Windows 7 SP1 will be available.
- A program on your computer is preventing Windows 7 SP1 from being installed.
- System files that are required to install Windows 7 SP1 are missing from your computer.
Method 1: Confirm that Windows 7 SP1 is not already installed and that you are not running a prerelease version of Windows 7 SP1To do this, follow these steps:
- Click Start, right-click Computer, and then click Properties.
- Check the Windows edition section:
- If Service Pack 1 is listed, Windows 7 SP1 is already installed on your computer.
- If a version number (for example, v.153 or v.720) is listed after Service Pack 1, a prerelease version of Windows 7 SP1 is still installed on your computer. You have to uninstall it before Windows Update will offer you the release version of SP1. For more information, see
How to uninstall Windows 7 SP1.
Method 2: Check for pending updatesUpdate 2454826, 2534366, and 2533552 may have to be installed on your computer before Windows 7 SP1 will be offered in Windows Update.
To install these updates by using Windows Update, follow these steps:
- Click Start, click All Programs, and then click Windows Update.
- In the navigation pane, click Check for updates, and then wait while Windows looks for the latest updates for your computer.
- If any important updates appear, click Install updates. If you are prompted for an administrator password or for confirmation, type the password or provide confirmation.
- Restart the computer if you are prompted to do this when the installation is complete.
- Check Windows Update again to see whether Windows 7 SP1 is now available.
2454826 A performance and functionality update is available for Windows 7 and for Windows Server 2008 R2
Method 3: Verify that an incompatible version of SafeCentral is not installed on your computerWindows SP1 may not appear in Windows Update if certain versions of SafeCentral are installed on your computer. SafeCentral is a security program that is manufactured by SafeCentral, Inc.
If your computer is running SafeCentral version 188.8.131.52 or an earlier version, you have to update SafeCentral before you can install Windows 7SP1.
To determine whether SafeCentral is installed, follow these steps:
- Click Start, click Control Panel, click Programs, and then click Programs and Features.
- Search the list of programs for SafeCentral. If SafeCentral version 184.108.40.206 or an earlier version is installed, visit the
SafeCentral website for more information.
Method 4: Check whether you have Intel integrated graphics driver Igdkmd32.sys or Igdkmd64.sys and whether you upgraded the driverWindows 7 SP1 will not appear in Windows Update if you have one of the following files on your computer.
- Igdkmd32.sys (32-bit), versions 220.127.116.114 through 18.104.22.1681
- Igdkmd64.sys (64-bit), versions 22.214.171.1244 through 126.96.36.1991
To check for the Intel integrated graphics driver and driver version, follow these steps:
- Start DirectX Diagnostic Tool. To do this, click Start, type dxdiag in the Search programs and files box, and then press Enter.
- Click the Display tab.
- Note the driver and driver version.
- If you have the Intel integrated graphics driver and driver version 188.8.131.524 through 184.108.40.2061, visit the computer manufacturer's website to see whether a newer driver is available.
Method 5: Make sure that you did not use vLite to customize your Windows 7 installationvLite is a third-party program that is used to customize an installation of Windows 7. vLite is known to remove some Windows system components. If you know for a fact that you used vLite to customize your installation of Windows 7, you should not expect Windows Update to offer you the option to install Windows 7 SP1.
For more information about issues that are known to occur when you use vLite and try to install Windows 7 SP1, see the
Why am I receiving an error message that system components are missing when installing Windows 7 SP1 topic.
For more information about how to obtain the stand-alone version of Windows 7 SP1, see Learn how to install Windows 7 Service Pack 1 (SP1).
Steps to work around the vLite issueIf you have tried all the steps that are described in this article, and Windows Update still does not offer you the option of installing Windows 7 SP1, you can work around the vLite issue by installing Windows 7 SP1 from the
Microsoft Download Center.
Important The recommended method for installing Windows 7 SP1 is to use Windows Update. For information about how to install Windows 7 SP1 by using Windows Update, see the
Install Windows 7 SP1 topic. If you decide to work around the issue by installing the service pack from the Microsoft Download Center, there are steps that you should take before you install Windows 7 Service Pack 1 from the Microsoft Download Center. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
Important If you do not follow the steps in Knowledge Base article 2505743, you may not have the best possible experience when you install the service pack from the Microsoft Download Center.
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