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.
OnePlus 5T review: Hands-on
Illustrator Andrés Lozano on his improv line work, brazen use of colours & hand sketching
iPhone X review
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