The below is the command for running SPConfiguration Wizard as follows:
First Open Command Prompt editor window and navigate to Bin directory as follows:
C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\BIN
And execute the below command as follows:
PSConfig.exe -cmd upgrade -inplace b2b -force -cmd applicationcontent -install -cmd installfeatures
This will results in running SPConfiguration Wizard successfully same as that it executing SPConfiguration Wizard through Configuration UI Wizard