Hi, and thank you for asking your question.
We can carry out a system recovery to restore the laptop back to factory defaults, which will allow you to create and use a new administrator account in the process.
First off, please hold down the power button for atleast 10 seconds (continue holding even after the screen turns off) to switch off the laptop completely.Next, press and hold the 0 (zero) key on top of the keyboard and at the same time, press the power button once to switch on your notebook (while still holding down the key.)
Does this bring up a Toshiba (recovery) window?
Please reply back using the box below; thank you.
PS: Please do NOT accept any remote assistance offer if it shows up on this page; it's sent out automatically by the site, and not by me. Do keep me posted below; thanks!