My Dell inspiron 7420 laptop had windows7(home preimium) and ubuntu 13.04 gnome i386 dual boot, and since 4 months i started getting this Read error on boot up or sometimes even
error no such partition, grub rescue
But after trying again and again sometime it started normally
Many times I formatted even windows and ubuntu both after that it works for few days or few hours and again starts giving the same error
On formatting C drive and installing windows7 again today this time I found another error
A disk read error ocurred, Press Ctrl+Alt+Del to restart This never happened earlier.
I thought it would be some problem with GRUB but after seeing this error today I was confused.
I also tried testing hard disk for bad sectors and read errors using Dell diagnostics, chk disk utility, surface tests and hiren's boot disk but found nothing.
what should I do?? Is it a hardware problem??or just some problem with the OS?