You can purchase a set of recovery discs from Toshiba, I know because I did that three years ago after buying a used Satellite which the previous owner had messed up by installing an unsupported Windows version on it - - nor had he made a set of factory recovery discs before changing the OS.
I ordered a set via this Toshiba page (for Europe only): https

/backupmedia.toshiba.eu/
For America, go here and scroll down to "Get Recovery Media"
https
/support.toshiba.com/repair
The set of discs cost me around £14 (UK Pounds).
Note: Availability is subject to the age of your laptop model, mine was a four year old model when I ordered a set three years ago.