had a friend update me to windows xp for some reason he put another local
drive on my computer this new drive has a lot of memory unussed on it while
my main one is laking memory.
First, do not mix up memory with disk space. They are two very
different things, and it's disk space you are talking about.
Second, you say "he put another local drive on my computer." Do you
mean that he physically installed a second drive, or that he
partitioned your only drive into two pieces, each with a different
drive letter?
if i delete this new local drive will the
memory go back to the main drive
I assume from that question that the answer to my question above is
that he partitioned the drive into two pieces. If so, no, if you
remove that second partition, you will have *no* access to the space
it occupied. The first partition will remain the same size as it is
now.
So, if I correctly interpret your situation, you have a drive divided
into two partitions, and you want to change the structure so you have
a single partition using the full amount of disk space on the drive.
Unfortunately, no version of Windows before Vista provides any way of
changing the existing partition structure of the drive
nondestructively. The only way to do what you want is with third-party
software. Partition Magic is the best-known such program, but there
are freeware/shareware alternatives. One such program is BootIt Next
Generation. It's shareware, but comes with a free 30-day trial, so you
should be able to do what you want within that 30 days. I haven't used
it myself (because I've never needed to use *any* such program), but
it comes highly recommended by several other MVPs here.
Whatever software you use, make sure you have a good backup before
beginning. Although there's no reason to expect a problem, things
*can* go wrong.
One more point: from the way you asked your question, it is clear that
you are a beginner at this. The risk of screwing up while making the
kinds of changes needed here are great. If I were in your shoes, I
would *not* try to do this myself. Either find a more knowledgeable
friend to help you, or else pay a professional to do it for you.