Hello All, Two days ago Microsoft started the automatic updates. A box came up saying that the computer would restart in 8 minutes and gave me the option to Restart Now or Restart Later. I chose Restart Later. I went to bed & when I got up the next morning the computer was froze on the Windows is shutting down screen. I had to turn off with the switch. When I turned back on, the computer won't start and gives the error "Disk Boot Failure, insert system disk and press enter." At the top of the screen it states: Diskette Drive B: None Pri. Master Disk: None Pri. Slave Disk: None Sec. Master Disk: CD-ROM, UDMA 2 Sec. Slave Disk: CD-ROM, UDMA 2 In BIOS at the Main Screen it shows: Primary Master [AUTO] (My only other option is NONE) Primary Slave: [AUTO] (My only other option is NONE) Secondary Master: [MATSHITADVD-ROM SR-8588] Secondary Slave: [_NEC CD-RW NR-9100A] On the BOOT Screen it shows: 1. IDE Hard Drive [None} 2. ATAPI CD-ROM [MATSHITADVD-ROM SR-8588] 3. Removable Device [Legacy Floppy] 4. Other Bootable Device [Disabled] Silent Boot [Enabled] I don’t know why the above sees my floppy drive as “B”. It was “A” prior to this problem. Or at least showed “A” in Windows Exployer. I have a second hard drive in this computer and they are connected with the same cable. I thought maybe the cable went bad so I changed it out but didn't help. The master and slave/cable select switches have not been changed since the second drive was put in over 5 years ago. It appears that the computer cannot find either hard drive so would it be logical to think that it’s not a bad hard drive but something else, right? I have a Sony Vaio PCV-RX850 and do have the Recovery CD's that came with the computer. I'm afraid to use them without trying something else first. I have some important files that I really need to try and keep if at all possible. I have done a lot of reading on the internet where there have been several suggestions but I don’t know what to try first since none of the problems were exactly like mine. Any help is greatly appreciated!!