after power on of laptop only mouse pointer visible, what is the reason?

[shabarish]

After my Laptop (Dell), only mouse pointer arrow visible without getting on fully what may be the reason??

 

[WyomingKnott]

Can you provide more information, please? What OS is supposed to boot, what model of laptop is this, and what's on the rest of the screen? Is the background dead black, blue, plaid, what?