How to Fix Windows XP Update Fail Problem

This problem occurs because of how the Windows XP repair operation replaces Windows system files. When you repair a Windows installation by using a Windows XP CD, the repair operation performs both of the following operations: It replaces all the Windows system files with the corresponding files from the CD; and it restores the Windows registry.

The latest version of Windows Update includes a file that was not available in the release version of Windows XP. This file is named Wups2.dll. Therefore, after the repair operation is complete, the following situation exists: The Wups2.dll file remains on the computer. The registry entries that correspond to this file are missing. Because the registry files that correspond to the Wups2.dll file are missing, update installations are unsuccessful.

Method to fix this problem:

Register the Wups2.dll file in Windows
To register the Wups2.dll file in Windows, follow these steps:1. Stop the Automatic Updates service. To do this, follow these steps:a. Click Start, click Run, type cmd, and then click OK.
At the command prompt, type the following command, and then press ENTER:
net stop wuauserv
Register the Wups2.dll file. To do this, follow these steps:a. At the command prompt, type the following command, and then press ENTER:
regsvr32 %windir%\system32\wups2.dll

Note For a computer that is running Windows XP Professional x64 Edition, type the following command, and then press ENTER:
regsvr32 %windir%\syswow64\wups2.dll
Click OK on each verification message that you receive.

Updated On: 12.07.15