BSOD in acpi.sys

[NEM1S1S]

HP Pavilion dv6-6138tx

General Windows operation seems to be ok, apparently it's been BSOD'ing here and there. My initial solution was to use Hiren's Boot CD to attempt to boot with Mini Windows XP to pull the data off and use the recovery partition to rebuild the OS. Every time it trys to boot to Mini Windows XP, I get hit with BSOD 0x0000007E and acpi.sys.

So far done the following;

sfc /scannow - no corrupt files found
latest BIOS (F.1B)
HP's Memory test diagnostics - no issues found