Solution

If it fails you should return it to the vendor. Meanwhile there are steps you can try...

When W8 won't boot
Difficult to access anything without an Installation disk or Repair disk/drive. You could repeatedly try shift plus F8 at power on and you may get into Safe Mode. Otherwise, if you have access to another machine running W8/8.1, create a Recovery Media. A small USB flash drive would suffice, the files only require around 250 Mb. Type 'Recovery' at the Start Screen and choose Create a Recovery Drive (from Settings W8). Uncheck the box for Recovery Partition...

If it fails you should return it to the vendor. Meanwhile there are steps you can try...

When W8 won't boot
Difficult to access anything without an Installation disk or Repair disk/drive. You could repeatedly try shift plus F8 at power on and you may get into Safe Mode. Otherwise, if you have access to another machine running W8/8.1, create a Recovery Media. A small USB flash drive would suffice, the files only require around 250 Mb. Type 'Recovery' at the Start Screen and choose Create a Recovery Drive (from Settings W8). Uncheck the box for Recovery Partition if you have little space, ie small USB flash or CD (W8). Once created, insert drive/disk in the failed PC and change the boot order in BIOS accordingly, USB boot or DVD/CD .
Once booted, navigate to Advanced Options and try Recovery to an earlier date, or from the Command Prompt try sfc /scannow followed by enter
If that fails consider Refresh your PC.
(I would return the PC rather than Refresh, it's quite drastic, removes drivers and software.)
Another option is refer to your PC Manual for instructions to revert your machine to Factory Settings, usually involves tapping a Fn Key at Power On. All your data will be lost.


 
Solution