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Dual Boot Window 7 (64 bit) and XP Pro (32 bit)

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November 2, 2010 11:06:36 PM

My system is currently running XP Pro. I’m look to setup a dual boot with Win 7 (64 bit) and XP Pro (32 bit) with each OS on a separate hard drive. I’ve out lined my plan below:

Upgrade XP Pro (32 bit) with Windows 7 Pro (64 bit).
Apply all updates for Window 7

A new install of XP Pro (32 bit) (retail version)
Run all windows update
Install necessary drivers.

From what I've googled it is about as simple as I've outlined, but is there anything else I should be aware of?

Once I get both installed,how do I get the systems to show an option to select an OS when I first boot up.


The reason for the dual boot is to have an OS in 32 bit. Would a program that runs in XP Pro 32 bit, but not Windows 7 Pro (64bit) work in the XP Node of Windows 7 Pro?



I appreciate the help,


sms1295

System: XPS 720
OS: XP Pro (All updates applied)
CPU: E6600 Socket 775
MOB: Dell 0CK520
Chipset: NVIDIA nForce 680i SLI SPP
Memory: DDR2 333 MHz 3072MB
Graphic: 2 Nvidia GeForce 7600 GS in SLI configuration
November 3, 2010 7:35:51 PM

Just a thought, why not try it with Win 7 64bit, install all your applications and see if that run fine on it? Then decide if you want to dual boot. I was about seceptical about going to 64Bit, but going forward, everything from Windows will most likely go to 64Bit anyway so you might as well make the jump. I've had 64bit running for awhile now and all my applications I've had in 32Bit, I've moved across and they work fine.

You can also try running the application in Compatibility mode (same as Vista) if applications don't run in 64bit properly. I've only had to do that for one program.

I'm just thinking it would probably be a lot easier than having to reboot your machine all the time to switch to Win XP from Win 7 if you wanted to run something in Win XP. Win XP Mode in Win 7 does work as well - but I haven't had to use it.
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a b $ Windows 7
November 3, 2010 11:12:11 PM

you need to have the XP installed first.
Then install Win7
since Win7 doesn't have a MBR, it confuses things.

You can install the 'upgrade' of Win7 on a separate HD on the same PC. I did that going from Vista to Win7. Allows for both OSes to be there @ once.
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a b $ Windows 7
November 4, 2010 4:16:29 AM

As arges86 said install XP first, but remember as you are upgrading to Windows 7 Pro that allows you run XP mode which negates the need for a dual boot with XP.
If you want to keep XP on a seperate drive there is no need to reinstall it, just install W7 on the other drive.
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a b $ Windows 7
November 4, 2010 6:07:10 AM

the xp emulation mode doesn't help if you have drivers that only work in XP...
although if they are that old, maybe its a hint to upgrade
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a b $ Windows 7
November 4, 2010 7:18:13 AM

Not sure if that is what you meant, but you cannot "upgrade" XP to 7, it has to be a clean installation. I've done what you are describing several times, so here's my suggestion:

1) If you plan to do a clean install of XP, do that first. Be sure to back-up all your data first.
2) After installing XP, do a clean install of Windows 7. Dual-boot should work automatically.

Whatever you do, DON'T try and install XP after 7, it will mess up your boot record and Windows 7 will not load.
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a b $ Windows 7
November 4, 2010 3:59:33 PM

First, I would recommend that you disconnect one HDD and install operating system for that drive - DOES NOT matter if you do xp, or windows 7 first. Once that operating system is installed and up and running then DISCONNECT that HDD and install/connect the 2nd HDD and install that operating sytem. Once that is up and running you can reconnect the 2nd HDD with That operating system on it.

Instead of a software Boot Manager you would hit the Key (On my Gigabyte MB it is F12) during the Post. This brings up a menu of which drive to boot from ( will not affect Boot prioity set in Bios). If your boot prioity is set to the Drive with Win 7, then that drive will come up as "C-drive" Hitting ie F12 and selecting the HDD with XP on it will now boot to XP and XP drive will become "C-drive" You can still access any files on the Win 7 drive (Will be "D-drive, or E depending on additional partitions you created).

Big Plus, the two operating system are independent of each other and not have to worry about a screw-up on one drive messing up booting to the 2nd drive.

Above method is what I used to triple boot to Vista, XP, and Win 7 RC. (used 6 HDDs, 3 pairs in raid0 - Never a had a problem I even used say the "Vista and the Win 7 RC HDDs to store files created in XP and Visa versa. Only thing is noting drive letter changes when changing which OP system I booted to.
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November 15, 2010 2:02:57 AM

All,

I've decided to install Windows 7 first and see how the XP mode works. If it doesn't work to my as I thought is should, I'll do the dual boot. All the informatin that was been provided in this thread has been very informative and will be useful if needed.

Thanks again everyone,

sms1295

This thread can be considered closed.
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