SP4 Installation Does Not Delete Reference to Previous Hotfixes (194334)

RESOLUTION

When you perform this procedure, the computer will not retain the record of hotfixes installed previous to the SP4 installation if you run the uninstall procedure by running Spuninst.exe from the $NtServicePackUninstall$\spuninst\ folder or you remove it through the Add/Remove Programs tool in Control Panel. To retain a record of what hotfixes were installed on the system before installing Service Pack 4, run Srvinfo.exe or Hotfix -l and save this information to a text file on the computer.

WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

For information about how to edit the registry, view the "Changing Keys And Values" Help topic in Registry Editor (Regedit.exe) or the "Add and Delete Information in the Registry" and "Edit Registry Data" Help topics in Regedt32.exe. Note that you should back up the registry before you edit it. If you are running Windows NT, you should also update your Emergency Repair Disk (ERD).

To remove the reference to these hotfixes, delete the following keys that reference pre-SP4 fixes:
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT \CurrentVersion\Hotfix\<KBArticleNumber>

where <KBArticleNumber> is the Q number of a Microsoft Knowledge Base article associated with a particular hotfix.

Also delete the folders under the %systemroot%\ folder that begin with $NtUninstall<KBArticleNumber>$ and that matches the registry key deleted.