Laptop gets slow nd screen gets off in hcl me laptop

[anzalkhan13]

i have hcl m e laptop, since past few days my screen gets off automatically when i am opening sume internet pages nd doing my normal works.
its not going off but its screen only tuns off , i am doing turn off nd on with switch so many times in a day. wht should i do to overcome the problem.

plz help

 

[kannadhasan1976]

i have hcl m e laptop, since past few days my screen gets off automatically when i am opening sume internet pages nd doing my normal works.
its not going off but its screen only tuns off , i am doing turn off nd on with switch so many times in a day. wht should i do to overcome the problem.

plz help