Just done a factory reset on wife's vaio. when tried to open receive a message " windows could not complete the installation. to install windows on this computer, restart the installation" clicked okay the started to install and same message appears.
Try holding [Alt] + [F10] keys as soon as you power on to start the factory restore process again. This will hopefully get you back to a working PC. Make sure you have the power cord plugged in when you do it.