Chris, take a look at this
http://support.microsoft.com/default.aspx?scid=kb;[LN];314060
You could also rt click on your drive icon in MyComputer then select
Properties>Disk Cleanup>More Options>System Restore-cleanup. That will free
up some space.
"Chris" <(E-Mail Removed)> wrote in message
news:e5a301c40ba3$325d5a10$(E-Mail Removed)...
> On two occasions over the past week my system has decided
> that my drives no longer exist. I have now done 2 system
> restores to solve the problem since that seems tobe the
> only thing that would work. Does anyone know why this
> happens?
>
> And second, each time I do a system restore it consumes a
> lot of my hard drive space. Is it advisable to delete
> the "old compressed files"? Thanks...