decent computer for the price, came with windows 10 pro (which is 199 itself, computer was 190) and the activation key is on a sticker on the bottom of the computer. this thing will really benefit from an Solid state drive. (~30 for 256GB on amazon)update, first one ended up to become physically damaged and would no longer turn so another was purchased.a couple points to some of the more negative reviews:wifi not working? theres a physical switch on the front edgedisk error? no os? download the windows 10 media creation tool and reinstall windows.no windows key? - you may not need one, newer computers have the key tied to the motherboard (esp windows 8, one of the requirements - a "bios-based key) . either way this computer came with windows 8 installed, with a windows 10 key on the bottom. i always reinstall windows brand new on new computers using the media creation tool (just to be sure theres nothing in the windows install "left over" from whoever handled this thing) so did a fresh install of win 10, entered they key on the bottom of the laptop and all was fine. "After you've installed Windows 10, head to Settings > Update & Security > Activation and you should see that your PC has a digital license. If you didn't enter a key during the installation process, you can enter a Windows 7, 8, or 8.1 key right in this window when you're asked to provide a Windows 10 key" came with an extended battery.