My friend wanted to create a bigger partitioin on his Windows 8 laptop whiich Windows Native partitioning tool is unable to do. So I suggested him to use a 3rd party soiftarte. But his bad luck that the PC refused to boot after doing it .
Now the first thing I tried the OKR (One Key Recovery), since there is no important data was present in Windows' drive .
But there is another shocking news was waiting for us, the OKR key didn't worked . After doing little research on Internet I found that OKR key fails to work if the OEM partition letter is changed.