This issue got resolved as apparently I need to adjust my ESET AV with adding an exception for the WMS executable.
I have an issue with the latest WMS 4.1.1.111.exe installer as the the package includes a freeware nssm.exe installer to deploy Window Services. Our ESET Antivirus treats the nssm.exe as potentially unsafe application and cleans it by deleting the whole .exe installer.  Does anyone with ESET Antivirus experience similar situation? 
WMS 4.x.x full installer issue with ESET Antivirus