Rebooting and error message 0xc00000005

Many times when I boot in the morning I receive an error message 0xc0000005
which prevents the desktop from appearing. It is usually resolved on the
second or third reboot but there seems no rhyme or reason as to whether I
will get to my desktop or whether the error message appears. I have done a
bios default which sometimes works when the third reboot doesn't. But again
it is always hit or miss.....very strange.