So after I changed to SATA AHCI mode in the BIOS, the main boot internal hard drive shows as a removable device in system tray. So how do I fix this issue, and I did follow the instructions in the Microsoft Knowledge Base article 922976, http://support.microsoft.com/kb/922976
to enable the sata driver first before I changed the BIOS setting. However in the Vista on the
same hard drive in the same computer, with the same SATA AHCI fix done to enable the needed
drivers, the internal hard drive does not show in the system tray as removable. So possibly if
I install the Intel Matrix Storage Manager from their site for this ASUS P5QL Pro motherboard
with a Intel P43 express chip set, known as ICH10, then after a re-boot it may no longer show
as removable. This computer is a 2009 store built desktop that has only one 500 GB SATA hard
drive installed. I had it set in the IDE compatible mode, so that I could mult-boot with XP, Vista, 7, and Ubuntu Linux.