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Reboot and select proper boot device

So I got a new PC around Christmas and it has been working fine most of the time. I occasionally got the reboot error and I just restarted the PC and it usually didn't happen for a couple of days. I have just returned from a week long vacation and now I get the error every couple of minutes. I could really use some help or advice.
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More about reboot select proper boot device
  1. check to see if the hard drive is spininnig with your hand. if it not the drive or the controller may have failed. check the data cables and power cables to see there on tight.
  2. Best answer
    First check the connections between HDD/SSD and MB, there could be a loose connection, or the SATA data cable could be faulty, or the drive is not getting proper power.

    Then check the drive with vendors diagnostics tool for health status.
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