After installing Windows 10 , most of my game will not display or play, why?

[WPCentral Question]

after installing Windows 10 , most of my game will not display or play

My computer : Windows 10 Home ,Processor- Intel (R) Core TM i5-2320 CPU @3.00GHZ, RAM 6.00 GB ,64 bit OSx64 based processor . Simple games like Cubis , Scrabble etc