Solved Toshiba Satellite P105-s6187 Factory Reset

The ‘press 0 while turning it on’ only applies to models made after about mid 2007. I’m not sure how old yours is but if it came with vista it’s probably too old to have a restore partition. Or if it’s supposed to have the partition it’s possible it was deleted or has become corrupted. You might check the support page for your model and see if you can still order a restore disk.