University of Wisconsin Help Desk Knowledgebase


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Windows XP - Unable to Install Updates from Windows Update


This document will explain some of the problems that could exist because the computer is unable to install updates for Windows XP.

Symptom

Upon trying to install Windows updates, you get this error: "Problem: A problem on your computer is preventing updates from being downloaded or installed. Solution: To fix the problem, try installing the updates again. If that doesn't work, use the Troubleshooter to try solve the problem."

Cause

The problem could lie in one of two places. First, it could be that the cache and cookies of the browser that is being used is conflicting with the Automatic Updates website. Secondly, it could be corrupt .dll files.

Solution

If you are uncomfortable performing this procedure, please call us at 264-HELP.

To fix the first issue, clear the cache and cookies of the browser you are using. The following is a link to a document that can show you how to do this:

After clearing the cache and cookies, try running Windows Update again.

To fix the .dll issue, you will need to re-register a couple of .dll files. To do this, follow these easy steps:

  • Run the command prompt by clicking on the Start Menu and selecting Run. Type "cmd" and hit Enter.
  • In the new window that came up, type each of the following commands, hitting enter after each one:
    • REGSVR32 WUAPI.DLL
    • REGSVR32 WUAUENG1.DLL
    • REGSVR32 ATL.DLL
    • REGSVR32 WUPS2.DLL
    • REGSVR32 WUCLTUI.DLL
    • REGSVR32 WUPS.DLL
    • REGSVR32 WUWEB.DLL
    • REGSVR32 WUAUENG.DLL
Windows update should now behave normally.



Keywords: .dll cache cookies upgrade re-register reregisterDoc ID: 6714
Owner: George S.Group: Help Desk
Created: 2007-11-16Updated: 2009-08-04

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