system error memory dump files

hi
this is my first computer, have learned a bit
from day 1, I had dumpfiles in my machine
because I did not start it up right and
I had done System Recovery by the place I purchesed it
the dump files are still in here, after 10 month I finaly found them
this is a:
Factory Installed
Refurbished Emachine Model 3609
RC 101 142 20R 707 16
Vista Home basic 32 bit
512 RAM CPU 3.33 GHz
Service Pack 1
I found the dump files in a popup called
Startup and Recovery
has the following
System failure
check box Write an evnt to the System log , and the check box is
checked
check box Automaticlly restart, check box checked
Write debugging information
option box, in it is Kernel memory dump
3 aditional options (none)
Small memory Dump (64 KB )
Complete memory dump

Dump file
% System Root % \memory.DMP
check box Overwrite any existing File, and check box checked

I have come to belive these are files not good for anything just filling
space ,and can be removed permanently, is that correct?

hope its clear enough have read a lot here and Help and Support
to try and remove this dump this is probly the place to start
but I have no clue how, learned enough to now fast clicker fast trouble
and I dont like to bring in my machine again
have learned many things on this site
thank you
Fritz







--
lucky me I guess