i purchased a used Sony Vaio laptop recently. It had a bunch of virus and i did rebooted to factory settings overnight.
i did not do any backup but it looks like i lost everything. in a blank screen a box message would pop up saying "Windows did not complete the installation. You must restart to complete the installation" and it would log me out automatically. i don't know a lot about this type of technicalities. please help.
Try performing the system recovery again to restore the computer to the factory settings.
Restart the computer, keep tapping the F10 key continuously, press enter key at the edit boot option, select start recovery wizard and click on skip VAIO Care rescue (If you do not wish to back up data) to start the system recovery process.