In my HP laptop I am getting the error 'Hard disk error 1 (3F0)' or sometimes 'boot device not found' or 'SMART hard disk error'. In system diagnostics, hard drive check it shows 'not installed'. Once in 10 times my laptop boots fine. I have also reinstalled the hard disk, but the problem persists. Weird thing is, Ubuntu live detects hard disk, and I am able to read and write data into my hard disk using Ubuntu bootable pen drive. I am not understanding the problem.