Question : Problem: Why can't I see my SATA hard drive in Windows XP, I see it perfectly on the BIOS and on boot up

Why can't I see my SATA hard drive in Windows, I see it perfectly on the BIOS and on startup

It happened from one restart to the other

Answer : Problem: Why can't I see my SATA hard drive in Windows XP, I see it perfectly on the BIOS and on boot up

Are you booting off this SATA drive?

If Windows is booting from another drive, and the SATA drive you cannot see should be D:, it could be that you do not have SATA drivers installed.