Laptop median screen black, mouse will appear after some time, however, what to do?

Laptop median screen black, mouse will appear after some time, however, what to do?

If the pointer is displayed, that is already a good sign.

I suspect the operating system can't load anything.

Do you have any idea how I can proceed so that I can use it again?

Start the laptop and spam the F2 key all the time. Sometime something should appear (mostly blue).

As appears in blue / gray to choose from here are the points Main, advance, security, boot and Save & exit

Yes, you are in the BIOS. Go on boat.

Boat boot option, boat option # 1, boot option # 2, CD / DVD ROM drive BBS priorities and pxe boot

Hm try Fast Boat.

I can choose between enabled and disabled

Oh…

then change what. If it was Enabled, turn it on Disabled or vice versa.