Win7 Computer boot prompt NTLDR is missing what to do

Failure diagram:

The NTLDR:NTLDR full name is a hidden, read-only system file, located in the root directory of the system disk, used to load the operating system, is the operating system's boot file, NTLDR the main role is to parse the Boot.ini file, and then load the operating system, so that the normal access to the system, so when the system is normal for its prior backup.

1, it is possible because the hard drive information has been tampered with, as a result, the system can not find the system partition on the hard disk, so the boot file NTLDR in the system partition can not be found, the solution is to enter the BIOS "Standard CMOS Setup", and then the hard disk detection mode is set to " Auto (Auto) "is OK.

2, or the active partition is not set up, find a CD with MS-DOS Toolbox, then run Fdisk, then select 2 (Set active partition) to activate the system partition;

3, if not, it is possible that the master boot record (MBR) on the hard disk is corrupted, so the system can not find the system partition, the solution is to run the FDISK/MBR in MS-dos toolbox.