Installing Windows XP on WIndows 7 Machine Tags: Windows 7 Boot Windows XP Last response: April 24, 2012 3:20 AM in Windows XP Share pho46514 September 21, 2011 6:58:23 PM Go into bios.Change ECHI to IDE.Change boot order so CD drive is the first boot.Install XP from drive.You will lose the Wndows 7 operating system. More about : installing windows windows machine PhilFrisbie a b $ Windows 7 September 21, 2011 7:44:40 PM That is the EASY part. Then you must track down all the drivers. Hopefully you are not doing this on a laptop because you may never get all the special hardware working. . . And if you DO get everything working then plan on spending hours installing all the XP updates. pho46514 September 21, 2011 7:57:49 PM All the question was,how to install Windows XP onto a Windows 7 machine. Related resources Installing Windows XP on WIndows 7 Machine - Forum Installing Windows XP on WIndows 7 Machine - Forum Re installing windows xp on a machine with windows 7 installed - Forum How do I install Windows 7 OEM on my XP machine. - Forum How to install xp on windows 7 machine - Forum Can't find your answer ? Ask ! Get the answer PhilFrisbie a b $ Windows 7 September 21, 2011 10:21:19 PM Your post was labeled as a discussion, so I added my thoughts to yours. pho46514 September 23, 2011 9:56:20 AM pho46514 said:Go into bios.Change ECHI to IDE.Change boot order so CD drive is the first boot.Install XP from drive.You will lose the Wndows 7 operating system. ECHI should be AHCI that's what it shows under SATA MODE on my laptop.ECHI was from memory but I was wrong. virtualshyam April 24, 2012 3:20:04 AM yes , you can do that . why you face the difficulty to co exist the 7 and xp is because they use diffreent concepts for boot manamgement. XP uses the ntldr approch and 7 use the bootmgr approch Hope you can find detailed explanation on this topic on the below mentioned link http://desktopreality.com/installing-xp-after-windows-7... hope you find it useful Can't find your answer ? Ask ! Publish Related resources Can winwindows 7 ultimate 64bit be installed on windows xp x64 machine Forum How can I install windows xp on a windows 7 machine with no CD drive? Forum Can windows xp be installed on a machine that has windows 7 Forum How to install xp on windows 7 machine Forum SolvedInstalling a second hard drive in windows 7 machine and read/write is extremely slow Forum SolvedWindows XP won't install on new machine? Hardware too new? Forum Installing Windows 7 on a machine that come with Windows 8. Forum Windows XP or Windows 7 for my Machine? Forum SolvedInstall Windows 7 fails. Machine_Check_Exception BSOD Forum Installing a New upgrade CPU on a Windows XP Pro. machine Forum Problem installing Windows 7 hdd into Vista machine Forum Problem installing Windows 7 hard drive in Vista machine Forum Solvedinstalling second drive with windows xp into a windows 7 operating system Forum SolvedInstalling new Motherboard, new SSD and clean install new windows-7 on old windows xp computer Forum Installing windows 7 64 bit on 32 bit machine Forum More resources Read discussions in other Windows XP categories Configuration Customization Drivers Security Video !