- use join method to parse $argList
- use $PSCommandPath instead of $MyInvocation.MyCommand.Path
- use ScriptBlock method to create request for latest winutil.ps1 with join $argList
- condition for $processCmd because in case when wt.exe is not available, there was double/redundant declaration of shell which lead to code mishmash (incorrect interpretation of quotes from Start-Process ArgumentList parameters
- changes in quotes and escape characters because command where not interpreted correctly in all possible cases of $powershellCmd and $processCmd
