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Windows 7: Dual Boot - XP Install Not Showing All Windows 7 Partitions

28 Mar 2012   #1

Windows 7
Dual Boot - XP Install Not Showing All Windows 7 Partitions

In trying to set up a dual boot system with Windows 7 and Window XP I have come across a very frustrating problem.

New system
HP Pavilion p7-1270t with Windows 7 installed

I have followed the instructions in SevenForums - Dual Boot Installation with Windows 7 and XP.

I shrunk my disk (in Windows 7) so now I have a Windows 7 partition and a XP Partition.
I did the slipstream so my SATA driver (Intel Express Chipset SATA AHCI Controller) was incorporated into the XP install (and I included SP3 after many different tries).

When I go to through the XP install and get to the select partition, I only see one partition, it is the entire size of the disk. I do not see any of the partitions that were created under Windows 7.

Any thoughts on what the problem is here?



My System SpecsSystem Spec

28 Mar 2012   #2

Windows 7 Professional x64 Linux Mint 16

It shows them ok from windows 7 in disk management ? Can you post a screeshot ?
My System SpecsSystem Spec
29 Mar 2012   #3

Windows 7

Attached are the screens shots from what I am seeing.
Notice the XP Install sees the disk but no partitions.

Attached Images
My System SpecsSystem Spec

29 Mar 2012   #4
Microsoft MVP


Look in BIOS setup to see if you're using AHCI mode for SATA controller - if so you'll need those drivers for XP.

The XP CD with those drivers may be too old to see a 1tb HD's partitions, which normally requires a BIOS update which you obviously don't need since the HD is seen in Windows 7.

You can try again using an XP w/SP3 ISO and different drivers, but the hardware may have simply left XP behind.

Have you tried virtualizing which is becoming a best solution? VMWare, Virtual Player and Virtual Box are all good freeware choices.
My System SpecsSystem Spec
29 Mar 2012   #5

Windows 7

If I can't figure out it soon, I may just go head with the XP install and wipe out the Windows 7 install. Then go back in and install Windows 7.
My System SpecsSystem Spec
29 Mar 2012   #6
Microsoft MVP


In that case you may have better luck with IDE mode if it's set to AHCI now in BIOS setup. You don't give up much.
My System SpecsSystem Spec
29 Mar 2012   #7

Windows 7

Decided to throw another disk in the system and install XP on that disk but ran into another problem. When I choose that disk to perform the install, it wants to write some startup files on disk 0 (the Windows 7 disk) and it cannot because "this disk does not contain a windows xp-compatible partition".

I guess I can disable the the Windows 7 disk and install XP on the second disk but I wonder what will happen once I enable the disk. Sounds like the EasyBCD program will update the boot file and add the XP boot option to the disk?
My System SpecsSystem Spec
29 Mar 2012   #8
Microsoft MVP


Always unplug the other HD during install to avoid these problems. Then after install plug back in the other HD, set preferred one to boot first in BIOS setup. When you want to boot the other OS HD, use the HP ESC one-time Boot Menu key to trigger it. This keeps the HD's independent to come and go as you please, and avoids problems that dual booting XP with modern OS's can cause.
My System SpecsSystem Spec
30 Mar 2012   #9

Windows 7

Kind of found that out the hard way. Have everything setup and tried to use the EasyBCD program in Windows 7 to manage the boots, and now the system is in a constant reboot state after going through the Windows Boot Manager. I enter the Windows 7 option and it just reboots again.

If I can find a way to fix the boot manager than I will just use the HP boot manager as you suggested. Otherwise I just may end up trashing it and just install XP on the primary disk and be done with it.
My System SpecsSystem Spec
30 Mar 2012   #10
Microsoft MVP


Unplug XP HD, boot into Windows 7, in EasyBCD choose Edit OS Menu to Delete the XP entry.

Now plug back in the XP hd to see if you can boot it using BIOS Boot Menu. If not unplug Windows 7 HD and reinstall XP, deleting its partition to create and full format a new one.

If Easy malfunctions in Windows 7 and it continues to boot loop at start, unplug XP HD, boot into DVD to run Startup Repair a few times after making sure Windows 7 or it's 100mb SysReserved partition is marked Active: Partition - Mark as Active.
My System SpecsSystem Spec

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