Shoutbox

Start -> Run -> lusrmgr.msc -- that will let you delete the account.  It will not delete any portion of the profile. 

After you are done moving/copying files, right click on "My Computer", choose Properties, Advanced, User Profiles.  If you have deleted the account before then or if the corruption prevents the profile from being identified, you may see it listed as only a long string of numbers -- select it and click the Delete button.