A:AnswerThe software installed is Windows 7, but it comes with the 7 and 10 DVDs just in case you want to switch. Read articles about these two different systems. They both have advantages and disadvantages. I preferred Windows 7 because of it's simplicity.
A:AnswerMy computer came with a set of windows 10 as well as windows 7. I installed windows 10 and it took a long time (hours) then it had to install the updates.