Step 1: Download Microsoft Windows Installer CleanUp utility

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1. Visit: http://download.microsoft.com/download/E/9/D/E9D80355-7AB4-45B8-80E8-983A48D5E1BD/msicuu2.exe

2. Save the file to your Desktop

3. Please double click the file msicuu2.exe on the Desktop to install this tool on your computer.



Step 2: Remove MSXML 4.0 SP2

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1. Click Start -> (All) Programs->Windows Installer Clean Up.

2. See if you can find MSXML 4.0 SP2 software and its update. If so, remove them.

3. Restart the computer and see if the issue still exists.



After that, please restart the computer and perform the following suggestions to reinstall MSXML 4.0 SP2 and the updates for it.



Step 3: Reinstall MSXML 4.0 Service Pack 2

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1. Please refer to the following link to download MSXML 4.0 Service Pack 2



http://download.microsoft.com/download/9/6/5/9657c01e-107f-409c-baac-7d249561629c/msxml.msi



2. When the File Download window appears, please click the Save button, and follow the directions to save it to the Desktop.

3. After downloading this file, please double-click the "msxml.msi" file on the Desktop. Then the installation will be performed automatically.

4. If you receive three options "Modify", "Repair", and "Remove", please click "Remove" and follow the instructions to remove MSXML 4.0 Service Pack 2.

5. After removing it, please double-click "msxml.msi" file again, click "Install Now" button, and then follow the instructions.



After reinstalling MSXML 4.0 Service Pack 2, please move on to step 4 to install the update KB954430.



Step 4: Reinstall Security Update for Microsoft XML Core Services 4.0 Service Pack 2 (KB954430) =============================================================

1. Please download the update from the following link:



http://www.microsoft.com/downloads/details.aspx?FamilyID=96a4413c-5261-4f69-83d0-932c430abd14&DisplayLang=en



2. When the File Download window appears, please click the Save button, and follow the directions to save it to the Desktop.

3. After downloading this file, please double-click the "msxml4-KB954430-enu.exe" file on the Desktop. Then the installation will be performed automatically.

4. After finishing the above steps, please check the result on the Windows Update website again.