For very old Toshiba Satellite or Tecra models running Windows XP or older:
For the vast majority of Toshiba (now Dynabook ) laptops, such as the Satellite, Tecra, and Portege series, these are the standard keys: toshiba boot button
If you’re looking for how to enter BIOS or select a boot device on a Toshiba laptop, use (BIOS) or F12 (boot menu) repeatedly after pressing the power button. For very old Toshiba Satellite or Tecra models
How to Access Toshiba Boot Menu | Toshiba BIOS Setup Utility If the Windows loading dots appear instead, you
You should see a "Toshiba" or "Dynabook" logo. If you are successful, a menu will appear. If the Windows loading dots appear instead, you missed the window and must try again. Common Troubleshooting Scenarios
If you cannot access the boot menu because the computer boots into Windows too quickly, you must change the boot order permanently in the BIOS.