How to quickly judge the method of Win7 system hard disk boot area error

When we use the Win7 Mirror system computer, know the hard disk for the computer is very important hardware, if our hard drive problems, then our computer will be completely stopped, we can use the computer on the Internet may encounter the hard drive of the computer bad, or the boot zone has a faulty fault, So when we encounter such a problem, how early we find that early resolution, will let our hard disk loss, immediately look at the Win7 system to determine the hard drive boot area error specific steps.

Phenomenon One: If our computer turns on when the hard drive boot system does not properly conduct the SYS command, it is possible that our hard drive has failed the boot sector.

Phenomenon Two: There is the boot of the computer when the hard drive can not be lifted, this means that our system and hard drive do not agree, this situation may be our hard disk boot sector data has been wrong, or is destroyed, data loss after the failure to boot, this is generally toxic after the phenomenon.

Three: The last one is the Win7 computer hard disk BIOS in the correct parameters, when we entered the DOS or Windows system can not find our hard drive, this is also our master boot record corruption phenomenon, So how do we get ready to minimize the loss of data when the computer comes up?