My Desktop and Laptop's problem still continues. It says ' A problem has been detected and windows has been shutdown to prevent damage to your computer '. When restarted, it says ' Exiting PXE_ROM.....Boot Device - HD, CD-Rom/DVD, Diskette A, Internal LAN ' and so on. Did many to solve the same. Now planning to take it to the service center. Hope, my system's will recover soon.