I'm trying (for the first time) to set up a computer with a dual boot of Windows XP and Windows 7. I mostly use Windows 7 but I have a couple programs that will only run on XP. As XP is already installed on the computer, I was trying to add a second partition for Windows 7 and I was trying to go by this guide: https://www.sevenforums.com/tutorials/8057-dual-boot-installation-windows-7-xp.html
However, after I have shrunk the XP partition down and attempts to install Windows 7, I get the following error message:
"Windows cannot be installed on this disk. The selected disk has an MBR partition table. On EFI systems, Windows can only be installed on GPT disks."
What should I do to successfully create the dual boot?