I was trying to install win XP directly on the laptop HD using another computer (without installing DOS), then I took it out when it was done copying everything it needed and was about to reboot. When I put this HD back into the laptop, it read the HD, but doesn't do anything. It just has a blinking cursor. The HD seems to be spinning so I assumed it was doing something? Anyways, I read this trick from another site that William_Wilson posted on: Windows Tutorials - Install Windows On A Laptop Without A Cd Or Floppy Drive | DreamInCode.net

William, any help with this? Thanks.

Also, another solution on the "No Operating System." On this particular Sony laptop, it autodetects the HD, but does not have it "enabled" for some reason. I had to go into BIOS and manually enable it by pressing [shift][1]. It will be different depening on your BIOS I am assuming. Hope this helps someone.