Windows 7 installed (unregisterd) it can be used fine but it will need a key if you want to download any windows updates but it also comes with the:
Windows XP Home SP2 with Licence key sticker underneath
just needs a charger...
unsure about the bat life as the charer i used to test it was not enough amps to charge but it let it run.
shiny 15.4 screen
Intel celeron 1.30GHZ
40 GB hard drive
1GB Ram
DVD-R/RW/CDR/RW DL
Intel Graphics
3 USB ports
1 VGA PORT
1 10/100
1 56K MODEM PORT
1 PCMCIA
Audio in/out ports