HGWC Freezes at step 5 !!

At first i was 2 days ago playing like always then had an error Failed to excute HGWC then after trying to replace the HGWC.exe had another error which is File Changed 2007 HGWC.exe after trying today for couple time it loads to step 5 and freezes i dont know what to do anymore any thoughts ??