Pretty cheap - http
/www.cnet.com/products/acer-aspire-5336-2524-15-6-celeron-900-windows-7-home-premium-64-bit-3-gb-ram-250-gb-hdd/specs/
How old is it?
We don't help anyone with passwords here.
If you know the password, try re-installing Windows. If the laptop is old, consider binning it.