Sooo many things to keep track of; soooo many things to keep up with! As of early October, we have finally upgraded all our household systems to Windows 7 SP1 64-bit. More accurately, the "holdouts" were one old Northwood skt-478 P4 system we totally decommissioned for recycling, and my brother's LGA-775 C2D system that had been running XP Home 32-bit. Now we have the Windows 8 release. I used to jump on a new Windows OS during my working life like flies on roadkill. I'm more cautious now. One machine we freed up for "new uses" was my WHS v.1 box -- an LGA-775 Gigabyte P45 mobo with an E8400 C2D processor. Obviously, it doesn't have "UEFI-BIOS." An extra system offers me a chance to "play around with" the new OS. However, I find this in a web-search leading to this MS webpage, after I'd already read somewhere something about Windows 8 and "UEFI:" "Secure boot requires firmware that supports UEFI v2.3.1 Errata B and has the Microsoft Windows Certification Authority in the UEFI signature database" What does this mean, exactly? What can I do, and what can I not do, for experimenting with Windows 8 on a spare computer system without "UEFI-BIOS?"