iastor.sys BSOD, Stop 0x0000007E

The BIOS from a laptop doesn't have much options.

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Please try loading your BIOS for optimal default settings.

axe0 said:

Please try loading your BIOS for optimal default settings.

I thought the iastor.sys was the driver normally associated with the Intel RAID controller found on many motherboards. And if his OS was installed with the RAID controller active make sure it is still active in BIOS. If not he could try booting with the controller in AHCI mode preferably or in IDE mode if all else fails. Otherwise we are probably looking at a corrupt driver or Hard Drive failure. No?

IRST doesn't only support RAID, RAID isn't configured on laptops.

There aren't much boot mode options in the BIOS of a laptop, I believe there are only 2 but I could be wrong as there are some laptops with quite some possibilities in the BIOS.

Diagnostics Test

 HDD TEST

Run SeaTools to check the integrity of your HDD. SeaTools for DOS and Windows - How to Use - Windows 7 Help Forums

   Note

Do not run SeaTools on an SSD as the results will be invalid.

Run chkdsk
Disk Check - Windows 7 Help Forums

Diagnostics Test

 Virus infection

A virus or a malware, a rootkit or a bootkit (boot sector virus) may cause such a BSOD. In this case it is needed to scan the system with a bootable virus scanner.
There are a few of such scanners available. Windows Defender Offline is a good one to do this job.
information Information

   Information

In a very little few cases it is seen that after a bootkit infection and its removal the 100 MB System Reserved Partition is converted to a logical volume. In such a case the point 6, Improper Boot Parameters

This is from Troubleshooting stop 0x7B and stop 0xED.