Try simple things first.
1. Power off, open the case and gently push the cables and connections into place. Try again.
2. Does the hard disk show in the BIOS screen?
3. What more can you tell? Any recent additions to the machine.
4. Does another hard disk work?
Bob
I am having a hard drive error .I turn my computer on and a none system disk error comes up when it is truing to boot off the c:\ It wount let me fdisk or scann disk ether.can anyone help

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