Toshiba Factory Reset not working

Registration date
Saturday September 14, 2013
Last seen
September 15, 2013
- Sep 15, 2013 at 12:04 AM

our Toshiba Satellite purchased in 2008 has been running really slow and giving us all kinds of trouble so we decided to just reset it. we tried the method listed on this site. making sure it was plugged in we pressed the power button for 10 sec. then pressing the power key and the zero key turn on the laptop, then hold the zero. it beeps i let go. then it just boots up as normal. my husband and i have both tried this about ten times going over the steps very carefully but we are never able to get the warning to come up so that we can reset the computer.

can you help?