The client log (C:\Program Files (x86)\BigFix Enterprise\BES Client__BESData__Global\Logs) should contain more information about the failing action. Try the command without the “pathname of system folder” like: wait msiexec /x {“BFB4F32E-38DF-4E8F-8180-C99FC9A14BBE”}
The command should also include the “silient” option. Here is an example of the uninstall command we use to uninstall an internal BES tool. The product id is retrieved from the regystry, change it as appropriated in your case:
parameter “ProductID” = "{substring after “/X” of((value “UninstallString” of key whose(value “DisplayName” of it = “IBM BigFix Client Deploy Tool” and name of it starts with “{”) of key “HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall” of registry)as string)}" wait msiexec /quiet /uninstall { parameter “ProductID” }