[ns] installation problem

[mohamed saad]

esalam alikom

gazakom allah khiran

i have problem the power is turnedoff when i had worked in linux so i lost the desktop of linux and appear only screen of commands i press    ALT,SHIFT,F7 but i didnt effect the screen of commands still appearing and i didn't obtain desktop
what i do to retard desktop again 

please help me

       
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