disk error

[JHarris864]

My computer screen has a non-system disk or disk error sign when I turn it on.

[itsmyname]

@JHarris864 -- your motherboard is unable to read your copy of Windows from your disk-drive.

This could be a loose "data" or "power" cable, causing the disk-drive to be "unresponsive".

Or, either cable could be damaged.

Or, this could be a complete failure of your disk-drive -- not responding to input/output commands.

Since the motherboard cannot access the disk-drive, it has tried to "boot" from those other "bootable" devices.

Replace the disk-drive. Reinstall Windows.  There is no other "cure".

[TheOldMan]

@itsmyname  may be correct but to find out for sure, to the  Diagnostics routine

That message typically would mean some items have caused this problem.

Most likely the hard drive has failed, but first run Diagnostics routine.

To run the Diagnostics routine, Start tapping the Esc key BEFORE starting the PC and then press the start button.
Keep tapping the Esc key until a popup menu shows. Then pick Diagnostics from that popup menu, F2.
Report back with the results.