I had to replace the original hard drive as it was faulty (I believe it also had a boot sector virus).
I created Recovery disks and everything went fine - however I cannot use them to restore the Vaio because of errors - either before the process will start, or on one occasion half way through Disk 2 !
For now, I have installed a plain copy of Vista Home Premium from my own disk, though I'll need to edit the product key to get it activated.
However, more worrying I cannot install drivers for the following items:
Base System Device
SM Bus Controller
I have searched the section of the Sony support website and found drivers, which I unzipped but I don't know how to install them as there is no installer and the "Add New Hardware wizard" or "Update Drivers" wizard doesn't read the files.
Please can you assist me as soon as possible.