Solved! Asus laptop restarts several times and displays black screen for a short time before restarting

[Mobina____]

the lapop was on the sleep mode and then my twin turned iton and found out it was updating windows so she restarted it and then it only requires a password in a blue box and when you enter pass it shows asus logo and that circling icon then it displays a black screen and a window frame flashes for a very short time but you can see the Pointer icon and it moves but everything else is just black and short after laptop restarts. please help me cause this isn’t my laptop and I need to fix it soon, THANK YOU

 

[helpstar]

use the windows media creation tool with an USB flash drive, boot the laptop with this
try repairing the windows installation on the laptop with it,
don´t install windows, this would delete files on the laptop.