Blue Screen Error

The Blue Screen of Death is the error screen displayed by the Microsoft Windows family of operating systems upon encountering a critical error, of a non-recoverable nature, that causes the system to crash
list some useful conclusions for further repairing of Blue Screen of death.

Text code you can use to diagnose the Blue Screen main cause

The IRQL_NOT_LESS_OR_EQUAL error usually means there are bad drivers of your hardware working on the computer. Also confliction of hardware can cause the error. You should consider to remove recently added new hardware to your system and see whether it fixes the problem. Similarly, disabling newly loaded device driver when you get Blue Screen can make your computer works again.
REGISTRY_ERROR

Such an error indicates a catastrophic failure in the system’s registry. However, this error can sometimes be caused by failure to read the registry from the hard disk rather than because the registry itself is corrupt. Most of the time though, if you get this error, you’ll have to restore from backup.

INACCESSIBLE_BOOT_DEVICE

Just as the name implies, this error indicates that Windows NT is having trouble reading from the hard disk. This error can be caused by a faulty device driver or a bad small computer systems interface (SCSI) terminator. If you’ve checked for these problems, but are still receiving the error, check to make sure that a virus hasn’t destroyed your boot sector.

KMODE_EXCEPTION_NOT_HANDLED

This kind of error is always considered caused by an incorrectly configured device driver. The registry is responsible for running the hardware and software of your computer as it stores all the values of the same. The registry is unable to load the drivers leading to Blue Screen error.

UNEXPECTED_KERNEL_MODE_TRAP

This error message is almost always caused by your computer’s memory. If you receive this error, check to make sure that all of your single inline memory modules (SIMMs) are the same type and speed. You should also check to make sure that your computer’s Complementary Metal Oxide Semiconductor (CMOS) is set for the correct amount of RAM. If all of these suggestions check out, try replacing the memory in the computer.

BAD_POOL_HEADER

This is, perhaps, the most obscure error message. In most cases, if you receive this error, it’s related to the most recent change you’ve made on your system. Try undoing the change to get rid of the error.

NTFS_FILE_SYSTEM

An NTFS_FILE_SYSTEM error indicates hard disk corruption. If your system is bootable, run CHKDSK /F on all of your partitions immediately. If your system isn’t bootable, try installing a new copy of Windows NT in a different directory. You can use that copy to run the CHKDSK program. When you’re done with the second copy, you can edit your BOOT.INI file to make your computer start your original copy of Windows NT.

KERNEL_DATA_INPAGE_ERROR

This error indicates that Windows NT wasn’t able to read a page of kernel data from the page file. Bad memory, a bad processor, incorrectly terminated SCSI devices, or a corrupt PAGEFILE.SYS file may cause this situation. The first step in correcting such an error is to recreate the PAGEFILE.SYS file and see if you can bring your system back online.

NMI_HARDWARE_FAILURE

This is a generic error message in which the hardware abstraction layer can’t report on the true cause of the error. In such a situation, Microsoft recommends calling the hardware vendor. This error can sometimes be caused by mixing parity and non-parity SIMMs, or by bad SIMMs.

The following picture describes about Blue Screen error in Windows 8 & Windows 7