Dual Boot Vista and XP with Vista already installed

If you want to install Vista onto an XP computer, try the reverse tutorial: (XP already installed)
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</Dream In Code>
-William. § (marvin_gohan)

Hello Again..

after reading my post, some more info may be required.

Vista partition = C:
Xp partition = d:

the dual boot screen comes up but when XP is selected, it tells me that \ntdlr is missing.

Using the xp disk to repair would only give me recovery console with DOS commands and I am not sure what to use.

Computer
Gateway p7811FX
2.26 dual core
4 gig ram

c= vista
d= xp
e = data
f= recovery(vista\gateway)

thanks for any assistance!!

M

I did something wrong here someplace and need a bit of help fixing it now. I completed this and vista boots just fine as it did before and the dual boot screen comes up on restart but when I select my XP install it just reboots automatically. My bcdedit settings are different and I'm not sure how they got this way, or how to fix it.

Microsoft Windows [Version 6.0.6001]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.

C:\Windows\system32>bcdedit

Windows Boot Manager
--------------------
identifier {bootmgr}
device partition=G:
path \bootmgr
description Windows Boot Manager
default {current}
displayorder {current}
{ntldr}
timeout 30

Windows Boot Loader
-------------------
identifier {current}
device partition=C:
path \Windows\system32\winload.exe
description Windows Vista (TM) Ultimate (recovered)
osdevice partition=C:
systemroot \Windows
resumeobject {1be01787-dab1-11dd-8675-806e6f6e6963}

Windows Legacy OS Loader
------------------------
identifier {ntldr}
device partition=C:
path \ntldr
description Microsoft Windows XP

The G:\ partition is actually my XP install, Vista is installed on C:\ currently.

Thanks
Josh

I am using a Compaq Presario V3000 Notebook with Windows Vista already installed.

I had a problem in installing Windows XP.


This is the error message I got:

Setup did not find any hard disk drives installed in your computer.

Make sure any hard disk drives are powered on and properly connected to your computer, and that any disk-related hardware configuration is correct. This may involve running a manufacturer-supplied diagnostic or setup program.

Can you help me solve this?

I really need to have XP and Vista in my laptop...

Thank you in advance!

Your laptop is using a SATA drive...you will need to make a driver disc for the controller....right after the Boot to Cd prompt comes up you will be prompted to install SCSI or third party drivers by pressing F6....press F6 and use the driver disc to install the controller drivers....

You can find the drivers that you need at the manufacturer's website for your model of computer....they must be XP drivers and if none are listed you will have to search for the drivers.

This is the web page...it contains all the XP drivers that you may need for your laptop (if you gave us the correct model...V3000....there is a model V3000T and the drivers are different)

Select software and drivers*

The file you need to put on the disc is the Intel SATA AHCI Controller Driver located towards the bottom of the page.

My laptop model is Compaq Presario V3431TU...

I have installed Vista and XP on 2 different disks (Vista is on a SATA drive and XP is on an NVIDIA RAID 0). The XP was the first OS and Vista was installed afterwards. Since I had problems installing Vista with the RAID as the primary boot drive (BIOS setting), I had to make the other drive the primary boot drive and install Vista. This resulted in Vista not recognizing that there was another OS present so it did not create the dual boot entry on the boot loader. The only way I can boot to either OS is to change the primary boot drive from the BIOS setup. Will the procedure you describe work on such a configuration, or is there something that must be changed?

Thanks in advance!

Then why did you not say that that was your model number to begin with...

Look it up yourself!

@ParisD
You can use this dual hard drive configuration.
Install a boot manager like EasyBCD in Vista.
Download EasyBCD 1.7.1 - NeoSmart Technologies

Thanks for the info. I will give it a try.

I fixed it! I used EasyBCD to add the menu entry for Win XP to the Vista bootloader, but there is an extra step:

You have to copy the ntlr, ntdetect.com and boot.ini files from the root of the XP drive to the root of the Vista drive, and then edit the boot.ini (through EasyBCD) to set the correct entry for the drive.

I had to change the following entry:
multi(0)disk(0)rdisk(0)partition(1)
to
multi(0)disk(0)rdisk(1)partition(1)

Hope it helps others with the same setup!