my vaio laptop hd is not working and sony centre sony centre said that cost of changing hard disk is 12k so can i change from outside this option is good or not? My laptop is 4 years old
Generally a smart failure error is not a good sign. Sometimes a virus is causing it, but more often than not, a replacement HDD is in order/will be soon.
Not sure of your location (I'm assuming India as 12K in rupees is about the only currency that 12K exchanges remotely close to acceptable - although still waaaaay over priced).
You have a couple of options now. Personally, I'd take this opportunity to upgrade to a SSD, rather than just replacing with another HDD, but that'll depend on the capacity you need.