Virtual Machine Blue Dump

Hello,

I need to know how to troubleshoot a virtual machine throwing blue dump.

There are 2 VMs, when I power it on, it throws blue dump for less than second and restarts/shuts down.

So there is no way;

1) I can check what Blue dump it is throwing

and

2) Since machine does not fully run, I cant log in.

Thanks,

Mihir