[yellowhorse]

Reboot and Select proper Boot device or insert Boot Media in selected boot device and press a key is what I get on my desktop it will turn on then after a few minutes restart and when it turns back on it will say that can anyone help.

[hr6677]

I would say that you either have an issue with your hard drive, loose cable, or power supply... I recently worked on a computer that would have about a 50 percent chance of booting.. The other 50 percent it would say no boot disk... The power supply may not be giving enough or proper voltage to support the hard drive... I replaced the power supply and all was better.

Sounds like a similar problem...

[DencoSK]

Check, if you can see your hard drive in BIOS. Also check your booting priorities (HDD should be first).

[Corso]

Check, if you can see your hard drive in BIOS. Also check your booting priorities (HDD should be first).

This is a good way to find out where you stand on the issue at hand, though boot device order does not have to have HDD in slot one - It helps if having issues booting.

Please do that and then post full details on your current OS installed (XP, 7, 8, DUAL BOOTING ANYTHING, ETC).

[plexplate4]

If the harddisk doesn't appear in BIOS you have to open up the computer and check the data and power cable of your harddisk.