Every so often I get crashing problems my screen turns blue and a load of separate numbers pop up in a range of 12 numbers per group then my computer restarts and keeps restarting until it reboots succesfully sometimes this dosen't happen and I go on normally other times it can be annoying can anyone help. Please

There is no need to reply to this anymore I fixed the problem.
It turned out to be a faulty sata connection lock from the motherboard
to the hard drive which was stopping my operating system booting correctly.
Thanks to anyone who was thinking of answering.