I use a slightly older but high-quality HP laptop and the system Vista with its clumsiness and the opaque processes in the background was thoroughly tired. I bought after reading some customer reviews that OA Windows 7, hoping that works. It did, and the installation was carried out without any problem, even faster than I thought. One has only to him after the installation time for one or the other can update (for example to be missing components, such as drivers, etc.) download, but it works very well from the beginning. Buying I have no regrets, the price seems very reasonable to me.