Cancel a suspended system restore

Hi All,
Was directed to this forum by a friend to hopefully solve a problem. For some reason(ie I clicked on something) a system restore started on my laptop. There wasn't enough space to complete it so it's suspended. Is there a way to undo it/cancel it as I think it's used up a lot of memory and is affecting my laptop.
thanks in advance,
Mohican
p.s. Wasn't sure what details required so I thought it best if you tell me what you require.

You may want to give this a try. If it does not work, delete all points and then make a new one, in case it is needed
http://www.vistax64.com/tutorials/76256-system-restore-undo.html

Works for Vista, too
System Protection Restore Points - Delete - Windows 7 Help Forums