Windows 7 Home Premium Service Pack 1 with all updates, you may be able to upgrade to Windows 10.
Battery holds a charge for at least 30 minutes, have not tested it any longer than that.
Looks decent, some scratches on case, has broken platic by the LH hinge but it works fine, laptop works good.
NO CHARGER/POWER ADAPTER INCLUDED. I am using my universal laptop power adapter which is NOT included, you can get one for $20 at Walmart, great to have around, several different adapters/tips for almost any laptop.
If the ad is still up it is still available. Reponses asking if it is still available will be deleted.