Another D610 password request

[clester2]

Hello all,
After reading for the last few days,
I am hoping that Rustam can help me as he has done for so many
Recently bought a d610 off ebay as a gift for my daughter,
unfortunly i get the gray screen on boot, "protected system....etc.."
sytem #58XMM91-595B
and is asking a system or admin password

I have tried, latitude master password.exe, didnt work
i would rather not dismantle the laptop,
any help would be great.
thanks in advance

service tag is 58XMM91
Express service code is 11424123685

thanks
again
chris