Apparently. The Windows installation on this VAIO was unstable from the beginning, so after 5 weeks, while I was playing poker online, it crashed and it wouldn't restore itself. Because the automatic repair thing didn't work, of course, I'm inclined to say, so I would have had to it back to the dealer. But, luckily, I had a Windows 7 installation DVD.
Now I still have to get the Fn functions to work as well as the touch pad.
Lesson learnt: don't trust anyone nor preinstalled laptops.