XP Won't Boot After Vista Dual Boot Installation

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5wood

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Feb 28, 2007
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I have a PC with a Intel D850EMV2 motherboard. It has 1024MB of Samsung RAMBUS memory. With Windows XP Pro installed on my C: drive I installed Windows Vista Ultimate on the D:
drive in a dual boot setup. Then when I restarted it the first time it would not boot up. I get the NTLDR missing error. Then I put in my XP install cd and got into the setup repair. Then I typed in fixboot and let setup fix the boot and restarted my PC. Now I can boot into XP but not Vista. Now I have lost my dual boot .ini file. I cannot boot into vista. I figured it would be a waste of time to go through the same routine again... it was. I got the same results. Has anyone had and fixed this problem?
 
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Boot from the Vista DVD and run Startup Repair. Vista does not use any boot.ini file.
 
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I had this same problem with a cloned duel boot XP/Vista.
Installed the utility VistaBootPRO on XP and used this program which is a Vista Boot Manager to easily fix the boot configuration for Vista.
 
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My problem is similar. With XP Pro installed on my C:\, I got Vista Home Prem, which would not let me upgrade, so I installed it on my D:\ partition on the same disk. After the install, Vista made the D:\ the primary partition and D:\ -> C:\ and it fails to recognize my XP installation. EasyBCD adds standardize code that doesn't apply to my XP partition.

So yeah I cannot boot into XP. How can I make bcdedit recognize XP?
 
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wisdomcb said:
My problem is similar. With XP Pro installed on my C:\, I got Vista Home Prem, which would not let me upgrade, so I installed it on my D:\ partition on the same disk. After the install, Vista made the D:\ the primary partition and D:\ -> C:\ and it fails to recognize my XP installation. EasyBCD adds standardize code that doesn't apply to my XP partition.

So yeah I cannot boot into XP. How can I make bcdedit recognize XP?
See post #2
FYI Vista will always say it is on "C", even if it is on "G."
 
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RootbeaR said:
See post #2
FYI Vista will always say it is on "C", even if it is on "G."
Chance are it did that because the person booted from the Vista DVD rather than run it from within XP.

Do as Randy_California advised, it will fix the MBR, allow you to choose which o/s you want to start first, etc.


Ray :)
 
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can you suggest how I can boot into XP so I can do what Randy_california did? XP install disk does nothing to re-write the XP MBR and deleting vistas MBR just ends the preboot sequence of:
"cannot find NTLDR
press ctrl+Alt+Delete to restart"
 
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wisdomcb said:
can you suggest how I can boot into XP so I can do what Randy_california did? XP install disk does nothing to re-write the XP MBR and deleting vistas MBR just ends the preboot sequence of:
"cannot find NTLDR
press ctrl+Alt+Delete to restart"
From what you said, i believe you can boot into XP but not into Vista right??

If so, forget the XP install disk. You used that to try and fix the MBR. What that did was hose the Windows bootloader, not allowing you to boot into Vista.

What you need to do is find the program VistaBoot Pro (latest version is 3.2 i think) Install it from within XP and run it to fix the MBR between XP & Vista.

Hopefully, you have XP on 'C' drive/partition and Vista on 'D' If Vista shows up as 'C' drive when you boot into it, it is because you booted from the Vista DVD rather than install from within XP.

Hopefully that was the info. you were after - if not, more enlightenment or someone more knowledgeable is needed.

God knows, i've had plenty of problems with an XP/Vista dual-boot - i've even experienced the errors you are experiencing now.



Ray :)
 
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Ok, to fix the NTLDR error with the XP boot.
Boot with the XP disk, select R for the recovery console, type fixboot at the command.
XP will now boot fine.
Then as Ray said install VistabootPro on XP and the program will install the bootloader for Vista.
I been back and forth with this quite a few times.
VistabootPro or EasyBCD work like magic.
 
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Did you not say "Now I can boot into XP but not Vista." And "I cannot boot into vista."
??

Are you saying you can't boot into either XP OR Vista at the moment??

I'm confoosed!! :confused:



Ray :D
 
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randy_california said:
Ok, to fix the NTLDR error with the XP boot.
Boot with the XP disk, select R for the recovery console, type fixboot at the command.
XP will now boot fine.
Then as Ray said install VistabootPro on XP and the program will install the bootloader for Vista.
I been back and forth with this quite a few times.
VistabootPro or EasyBCD work like magic.
Randy, not to hijack the thread BUT whenever i've used the XP recovery console, it asks for a password (which i've never set) Hitting 'enter' just repeats the need for a password???

Ever hear of such a thing before??



Ray :)
 
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Ok I never said I could get into XP, that is my problem.. logging into XP.

The XP install disk, including using fixboot, does not work or it does not re-write my MBR.

Just to clear confusion, I can boot into Vista. Its Vista Home Pre, so I when I tried to upgrade my XP, it would not give me that option, so I booted from the Vista disk and put Vista on my empty partition on the same disk as XP.

The screen that lets me select O/S does not give me the option to boot into XP. Deleting Vista MBR just gives me that "cannot load NTLDR.." message mentioned above. Running the windows Xp install disk, hitting R, then fixboot does not effect the Vistas MBR. So yeah thats where I am at.
 
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