There is a unique package guid assigned to each MSI file, so Windows will know if it is the right one. It must be the exact MSI that was used, and not just a similar one. Just for the record: If you have access to the original MSI that was actually used to install the product, you can use this to run the uninstall. This command line tool ( msizap.exe) also had a GUI available ( MSICUU2.exe), both tools are deprectated (try the link to the new cleanup tool listed above). In most cases MSI packages can be uninstalled from add/remove programs from the control panel even if you don't have the original installation database for the MSI - the uninstall is run from a cached copy of the original MSI in the system folder %SystemRoot%\Windows\Installer (in some cases this cached MSI could be missing, see section 12 here for potential causes).Įarlier versions of MSI tended to trigger this problem (asking for the original installation media) more often (Office back in the day), and legacy MSI files can still cause uninstall problems that can only be solved using the msizap.exe tool (this tool is deprecated, outdated and no longer supported). Here is a more comprehensive explanation of the problem: Why does MSI require the original. If you experience this with a vendor MSI it is highly recommended that you report the problem to their support team. It is not normal or standard MSI behavior to ask for the original source media - it indicates a badly designed MSI package. Perhaps try the tool linked to in saschabeaumont's answer. This new tool appears to have been deprecated as well. This newer support tool can be tried on recent Windows versions if you have defunct MSI packages needing uninstall. Scroll down to find the McAfee product you’re trying to uninstall and click the three-dot menu next to the mentioned size. Update, Stein Åsmul: There is a whole list of cleanup approaches here (recommended). Open Settings with Windows key i button combo, and then click on ‘Apps’.
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