On 03/21/2016 10:39 PM, Yes wrote:


This might help


http://www.intowindows.com/how-to-du...dows-8-and-xp/

The article doesn't really make much sense to me; it seems geared to
someone who wants to install a dual boot of Windows 8 and WinXP. I
already have both O/S's installed and want to get my existing WinXP
back. IIRC, when I installed Windows 8.1, I had bought a new HD
specifically for the Windows 8.1 O/S. I disconnected the cables from
my other HDs, installed Win 8.1, reconnected the other HDs and entered
BIOS to choose which HD I would want to boot from. I have not had a
problem doing that until today.




Ok if you had the XP drive disconnected when you did the Win8.1 install,
it of course should not have affected the drive.

Test this out: Remove the Win8.1 drive and connect the XP drive and see
if it boots.


If it does not boot...is the bios set to mbr or eufi ?