Windows wont start after 8.1 update wont boot in safe mode

[stainer]

Last night I updated windows 8.1 from windows 8.
It got to the stage where it needs to restart so it done that started the configarations and once it reached 100% it restarted.

Since then what happens is when i press power on the samsung logo comes on the screen then the black screen with the windows picture then the bsod comes up for around half a second and it restarts. then it constantly does this.

The whole cycle only takes a few seconds.

Ive tried booting in safe mode but this isnt working so I downloaded kav rescue on another computer and saved it on a flash drive, But it wont boot off this either.

Any ideas?

 

[broe23]

What does the BSOD state? Most times it is a driver issue with the Display drivers. Other times it is hardware.

 

[stainer]

when the bsod comes up for a split second it says acpi_bios_error nne of the shift f keys work it takes 15 seconds from when it restarts till it restarts again

 

[Saltgrass]

The system doesn't have a special key to get into the bios other than the F keys? Sometimes getting those to work takes a special way of tapping them when the system just starts the reboot.

Have you tried booting from a Powered Down condition? Have you tried without the battery? How old is the battery?