Missing system files do not need to be reinstalled into Vista system

Compared to Windows XP system file repair, Windows Vista saves the "DOS commands" that many people are not familiar with (this is in terms of "simplicity" and "humanization" A progress). Sometimes, before entering the desktop, the "file missing" prompts that the system cannot enter the system. It is generally caused by indiscriminate loading and unloading of software, abnormal operation, and system file "poisoning" being killed. Below, there are two effective solutions for not reinstalling the operating system (including implementing Ghost recovery).
The first method: call the "last correct configuration" in the mode option
Turn on the computer, press "F8" to enter the mode option, select and confirm:

Important: If this method is used No, please use the second method.
The second method: enable the "Repair Computer" function on the installation CD
Set "Optical Drive/Disc" as the first startup item in biOS. Restart the computer to run the installation CD:
Important: You must use the original CD that installed this system.