Laptop screen remains

Hello,
hello,

ravindra here,

last night my audio drivers were not working so i made a set up for all drivers including BIOS drivers then one massage

displayed on my screen asking me for restart. now as usual i say yes. but after that my laptop is not getting started'

when i use to power it on then HP logo appear for one to two seconds and then it goes black. nothing after that.

Please help me to resolve the problem.

thanks