That thing makes me the preinstalled system everything it should. That's why there's still the 3 stars (because it actually runs) It's just, unfortunately, intense "littered" with Lenovo own stuff. People can live with it okay. But who would like to play a "fresh" empty OS gets the receipt quickly. Although Windows 7 runs but requires beaten 2 minutes to boot. Because apparently any system drivers start delayed by at least 90 seconds. And, although all drivers are installed. Original AMD drivers also do not run. If you install this so the laptop freezes on battery power. Taking the drivers of Lenovo's all. However, there is such a thing how often the new Lenovo driver is available. Windows 8 runs smoothly and quickly. However, I had when reinstalling 2x the problem that the device is stuck easily in Hibernate mode and unbootable be left without a carry "system repair". I'd never in a notebook. With the pre-installed system, however, runs all Okay! Now I can not say whether it was so only in my notebook or whether all have the same problem of course. According to the Internet, there are probably a lot of the problem. At least with the AMD drivers and the problems with Windows 7. Maybe mine was indeed a Monday device.