Blue screen error! help 10 points!?

A Stop error can also be caused by a critical boot loader error, where the operating system is unable to start from the bootable drive due to the presence of an incorrect disk driver, a damaged file system, or a similar problem. In such cases no memory dump is saved. As the system is unable to start from the hard drive, correction of the error requires booting from the Windows set-up CD, to correct the problem by performing a repair install or by using the Recovery Console (with CHKDSK or fixboot)