HP laptop needs repair after 3rd day of purchase

I purchased a HP 250 G3 N3540 4GB 750GB on 6 August 2015 and on 9 August 2015 it will not start up, blue screen with error code 0xc000025<br> <br> NOT HAPPY <br> <br> My previous laptop crashed now replacement laptop will not start, needs boot disk, so why are we not given a boot disk, seriously this is so pathetic HP <br> <br> No one answering Cresta store telephone which is open on Sunday's and public holidays.