Windows 8 boot/BCD error

This is my daughters pc, just trying to help her out, its a acer apsire E1-571 lappy running windows 8, On start up it was coming up with a blue screen and message saying no bootable device, hit any key, in that boot option menu, there is nothing listed. i rebooted and went into setup,boot mode was UEFI, but no harddrive listed. i changed boot mode to legacy, rebooted and harddrive was listed, but still would not start, i reinstalled the os from usb, And everything was working fine, did the normal update of drivers etc, and programms, turned the lappy off, and now it wont boot again, but has the 0xc000000f Boot/BCD error message , i have tried everything, from running the repair to following instructions on how to rebuild the BCD, to every suggestion listed on the net, have even tried to reinstall os again, but nothing will work.. can anyone help please.