When I Turn on my laptop...I get the SONY ad,then instead of,going to Windows..I get the message..."Cannot find operating system" on a black screen...I tried the boot disk & It will Boot to the "A"drive...But it can`t locate the drivers,to read the recovery disc...I tried changing the bios...Still no help....Losing files is not a problem..Starting from scratch would be O.K....How can I save my Hard Drive, without,having to send it back to Sony....It`s an older model,no longer under warranty!!.....Thanks for any help..Sperls