Okay, so what's the problem?
This operating system seems to have been designed to force announced the symbiosis between the PC world and the most 'primitive' tablets and smartphones.
Result: loss TOTAL ergonomics for user accustomed to the Windows ecosystem, a rough interface (and rather ugly) and a now limited administration of your machine: loss of the 'start' button, and installed applications presented how Apple, activating various screens suddenly, closing windows and programs as before, no media-player incompatibility many drivers and finally questionable value on a non-touch screen, which is the case of most People who have a PC. In short, madness!
Inspired by hearing evil gurus prophesying the death of the PC, Microsoft decided to sacrifice her reputation and customers to do some like Apple, without their knowledge.
So, yes, it seems he proposed an update (8.1) that fixes some problems but while standing on Windows 7 +/- 30 Gb of disk space, install Windows 8 with updates has completely saturated the SSD my laptop 64 Gb.
The Mass was said!
Conclusion: professionals and gamers (especially) or average user, continue to use Windows 7 that is stable, proven and feature rich. Shame the egg skulls at Microsoft who dared to come out this m ... and take their customers for testers or just for idiots.
Hopefully Microsoft will correct it with the next version of Windows.