You install a service pack for Microsoft Windows Server 2003, and then you restart the computer. For example, you install Windows Server 2003 Service Pack 1 (SP1) or Windows Server 2003 Service Pack 2 (SP2). When the computer restarts, you receive the following error message:This problem occurs the first time that you try to restart the computer after you install the service pack. You may not receive the error message the next time that you restart the computer.

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This problem occurs because of a failed control set. When you restart the computer right after you install Windows Server 2003, Windows uses the Last Known Good configuration. The Windows Server 2003 service pack installation program sets the LastKnownGood subkey to equal the default setting and the current setting. Regardless of how you start Windows after the installation, you receive the previous configuration. This configuration has a failed control set.

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Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall the operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk. To resolve this problem, create a registry entry to disable the error message. To do this, follow these steps:

1.	Click Start, click Run, type regedit, and then click OK.
2.	Locate and then click the following subkey: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Windows
3.	On the Edit menu, point to New, and then click DWORD.
4.	Type NoPopUpsOnBoot to name the new entry, and then press ENTER.
5.	In the right pane, right-click NoPopUpsOnBoot, and then click Modify.
6.	In the Value data box, type 1, and then click OK.
7.	Exit Registry Editor.

Note These steps only prevent the message from appearing.

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Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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For more information about the Service Control Manager, visit the following Microsoft Web site: For more information about the CurrentControlSet subkey, visit the following Microsoft Web site:

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Steps to reproduce the problem

1.	Start the computer by using the Last Known Good Configuration feature. For more information about how to do this, click the following article number to view the article in the Microsoft Knowledge Base: 307852 (http://support.microsoft.com/kb/307852/) How to start your computer by using the Last Known Good Configuration feature in Windows XP Note Article 307852 applies to Microsoft Windows XP. However, the steps for Windows Server 2003 are the same.
2.	Install a service pack for Windows Server 2003.
3.	Restart the computer.

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