whenever I booted the computer, it would go through all the normal spiel as the computer loaded, then offer me the choice of Ubuntu or Windows, but I had to be there ready to select, because it only gave me a few seconds to choose. If I was too slow to select Windows, it would just start booting into Ubuntu automatically. Ubuntu looked pretty cool, but I couldnt make my wireless network card work on it, because I cant work out how to install any programs on it at all. It was really annoying, because I would have tried Ubuntu for awhile, but every time I needed to boot Windows, I couldnt just turn the computer on and walk away for a few minutes - I had to wait for the option to choose Windows first or I would come back and Ubuntu would be loaded instead of Windows.Since I doubt I would have chosen Ubuntu unless it was a boring rainy day and I felt like experimenting, it wasn't worth having to go through that every time I booted the computer, so I asked my brother to uninstall it. I still think he has removed everything though, because the computer says there is no operating system, and surely it would know?