To follow-up Das_stig's response - many laptops that come pre-installed with Windows 7 do not come with a recovery disk (and good for you for thinking ahead of time
). Learn how to create your own visit http://windows.microsoft.com/en-US/windows7/Create-a-system-repair-disc
You can probably also purchase one from Toshiba, but it'll cost you a little bit.
Microsoft Windows Outreach