HP Laptop

Recently purchased a HP Laptop (don’t think the model matters) and when I did the previous owner mentioned that she had installed a child lock on it. When asked about it she said it prevents the laptop from being accidently turned on. I have to press the power on button once then once again like turning it off, then twice more to get it to turn on. Has anyone heard of this or can help me with this. We be greatly appreciated.

Robert