You cannot use Add/Remove Programs on a Windows Server 2003-based computer to uninstall iSCSI Initiator after you install a service pack

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SYMPTOMS

Consider the following scenario. On a Microsoft Windows Server 2003-based computer, you install Microsoft iSCSI Initiator version 2.04 or an earlier version. Then, you install a Windows Server 2003 service pack. In this scenario, you cannot use the Add/Remove Programs item in Control Panel to uninstall iSCSI Initiator.

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CAUSE

This issue occurs because the iSCSI Initiator installation package is installed as a hotfix. When a service pack is installed, the service pack removes the registry entries that allow for previous hotfix packages to be uninstalled.

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RESOLUTION

Use one of the following options, as appropriate for your situation.

Option 1

To avoid this issue, uninstall iSCSI Initiator before you install the service pack. Then, reinstall iSCSI Initiator after the service pack is installed.

Option 2

To resolve this issue after it has already occurred, run the iSCSI Initiator uninstall program. To do this, type the following command at the command prompt, and then press ENTER:

%SYSTEMROOT%\$NtUninstalliscsi200$\spuninst\spuninst.exe

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