bought this pc from ebuyer mainly because it had the spec i was looking for and i didnt have to take a monitor ,keyboard or mouse. all of which kept the price very reasonable . it came without an operating system but it was quite easy to load one on. absolutely no paperwork came with the pc just a disc to load drivers etc. anyway all loaded up and away we go no probs. BUT and a big but the fan on the power supply runs constantly and is very very noisy. such a shame. i would exchange the one out of my 6 year old dell,which is much quieter, but the dvd drive has a different fitting. too bad. i dont recommend one