New build computer with SP3 for XP Pro wouldn’t take a KB cumulative update for Internet Explorer.
— Error: A problem on your computer is preventing updates from being downloaded
You get an error message when trying to install Windows Updates on your Windows XP or Windows 2000 computer.
Problem: A problem on your computer is preventing updates from being downloaded or installed.
Here’s how to solve the problem:
1. Click Start > Run and type regsvr32 wuapi.dll
2. When you receive the message that the DLL has been registered, click OK and perform the same steps for each of the following commands under Start > Run:
regsvr32 wuaueng1.dll
regsvr32 wuaueng.dll
regsvr32 wucltui.dll
regsvr32 wups2.dll
regsvr32 wups.dll
regsvr32 wuweb.dll
-This worked for me