Windows 8 64 bit. But the desktop side is windows 7 I guess? I use the desktop side way more than the windows 8 side. Windows 8 is all about apps, and you have to sign in using a Microsoft account. I do not like the Windows 8 apps, internet explorer is crap and you can not save your favorites or navigate like you are used to. It is hard to multi task on the windows 8 side. Also it is not a touch screen so you have to navigate with the mouse pad and arrows. Not too bad once you get used to it but different for sure. I love the computer it is great and faster than my old dell desktop. No complaints on the computer at all, smooth. get rid of the pre installed antivirus, I use avg free. And I installed my old copy of Microsoft excel and word, etc. what comes on the computer is the student version, crap, and only a demo. Any more questions, feel free to write back. Hope this helps! Have a great day.
hello this laptop is very complete if you perform common everyday working as couriers and office work activities for a student, obviously you can not run programs in this dipositive design or architecture but is good device for presentations of work and tasks rutinrias as mention above