To resolve this problem, you must remove the third-party program that is causing the problem.
Warning The following procedure includes steps that will modify the Boot.ini file. Improper configuration of the Boot.ini file can leave the computer in an unbootable state. We recommend that you back up the Boot.ini file before you make these changes. For more information about how to backup and edit the boot.ini file, click on the following article number to view the article in the Microsoft Knowledge Base:
289022 (
http://support.microsoft.com/kb/289022/ ) How to edit the Boot.ini file in Windows XP
1. Click OK to close the error message.
2. Click Start, click Run, type appwiz.cpl, and then click OK.
3. Click the program that customizes the startup graphics, and then click Remove.
4. Restart the computer, and then try to install the service pack again. If the problem persists, go to step 5.
5. On the desktop, right-click My Computer, and then click Properties.
6. Click the Advanced tab, and then click Settings under Startup and Recovery.
7. Under System Startup, click Edit.
The Boot.ini file opens in Notepad.
8. Locate and then delete the /KERNEL=filename switch.
Note The /KERNEL=filename switch is an optional parameter. Typically, it is only used by third-party programs that modify the kernel. It is safe to delete the entire switch parameter, which may resemble /kernel=kernel.exe. The following is a sample Boot.ini file from a Windows XP Professional-based computer that contains a /KERNEL=filename switch: