There is an error when I turn on the computer, why is that?

computer

When I turn on the computer, the error appears as below, so why is that?

Loading Operating System ...

An operating system wasn't found. Try disconnecting any drives that don't contain a operating system.

Press Ctrl+Alt+Del to restart

How do I reboot when I press Ctrl+Alt+Del?

289 2017-05-31 Gentleman

A. 1

Based on the content, it seems to be because there is no window or it is broken.
I think you need to open a new window.

Gentleman 7 years ago 0

A. 2

It looks like a window failure.
In this case, it can be simply a window problem, or it can be because the hard drive is broken.
Try opening the window again.

Gentleman 7 years ago 0

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