If it's a new laptop and the restore fails, it's a warranty issue. So back to the shop or directly to Sony customer support.
I got my new Sony Vaio VGN-NW20EF today and attempted to install the McAfee trial that was on it, and was asked to restart my system. When asked to enter the windows password, the one I chose didn't work. I'm pretty sure it was right as I always use the same one, but that's beside the point. I tried a few combinations but was locked out. As I was in the first half an hour of using the laptop I hadn't yet set up a password disk so looked on the Sony website for support and it said to do a full system restore.
I started this up and after a few minutes got an error message saying that the restore had failed, and the laptop shut down. Upon restarting I got a message that there was no operating system found, and now I can't get onto anything - there just seems to be nothing left on the laptop at all.
What can I do? I'm rather panicking here.