hey there

i have a dell inspiron N5010. lately my laptop keeps crashing. Suddenly it just turns off. When i try to turn it on again, i get an error press control+alt+delete .. a disk read error occured... 

if i do the needful, the same error comes back up... but if i try to turn my laptop on after 10 minutes or so, it turns on normally, and i am able to use it, but then again it suddenly crashes and automatically turns off . the same cycle continues. 

I'd appreciate any help or suggestion as this is just frustrating. Thank you