try here
http://www.csd.toshiba.com/cgi-bin/t...sp/askIris.jsp on the search tool type satellite A210/A215 you should get below
Satellite A210 / A215 User Guide (4) (GMAD00173010_08Feb15) -- Page: 61
...recovery options: ❖ Hard Disk Drive Recovery using the recovery partition...Satellite A210 / A215 User Guide (4) (GMAD00173010_08Feb15) -- Page: 61 ...
Published 4/2/08
Satellite A210 / A215 User Guide (4) (GMAD00173010_08Feb15) -- Page: 59
...disk drive to the factory-set default without the HDD Recovery partition...Satellite A210 / A215 User Guide (4) (GMAD00173010_08Feb15) -- Page: 59 ...
Published 4/2/08 | Rating:
Satellite A210 / A215 User Guide (4) (GMAD00173010_08Feb15) -- Page: 64
partitions (for example, a D: drive) those partitions and any information on them will not be affected and will remain intact. To recover only your C: drive: 1 On the Toshiba Recovery Wizard Screen, select Recovery...
Published 4/2/08 | Rating:
all found on toshiba site also it says press zero while powering on computer so cold boot and press and hold hope it works