usually it's a bad data cable connection to the HDD or Motherboard. But if it runs after a restore then it cannot be. She could try CHKDSK /F in the run window (XP) or whatever it is for other OS.
Best phone camera 2017
Stunning new film posters by Hattie Stewart, Joe Cruz & more
iPad Pro 10.5in (2017) review
28 astuces pour profiter au mieux de votre iPhone