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I have a 2 harddrive system with the following old and new scenario. The old scenario worked fine, as I had a boot menu where I could choose which Windows XP installation to boot. However the new scenario starts up Windows 7 directly. I did remove the c:\Windows (XP) from the bootmenu before installing Windows 7.

Old (XP + XP dual-boot):

Drive 1:

c:\Windows (xp)
d:\

Drive 2:

e:\Windows (xp)
f:\

New (Windows 7 + XP dual-boot):

Drive 1:

c:\Windows (7)
d:\

Drive 2:

e:\Windows (xp)
f:\

How do I get my e:\Windows (XP) back as a choice for booting?

Update

I get C:\XP instead of E:\XP in EasyBCD, even when I manually give the drive letter. Is this ok?

There are a total of 2 entries listed in the bootloader.

Default: Windows 7 Timeout: 30 seconds Boot Drive: C:\

Entry #1 Name: Windows 7 BCD ID: {current} Drive: C:\ Bootloader Path: \Windows\system32\winload.exe

Entry #2 Name: Microsoft Windows XP BCD ID: {624363eb-98af-11df-83b4-ac40caa654b1} Drive: C:\ Bootloader Path: \NST\easyldr1

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2 Answers

You need to edit the boot configuration data.

Either do it using the bootrec.exe tool that comes with Windows or have a look at EasyBCD.

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+1 EasyBCD, it is the easiest way to correct the W7 bootloader –  Moab Jul 26 '10 at 17:45
    
Please see my updated question. –  ropstah Jul 26 '10 at 21:38
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Be sure to also correct the boot.ini.

Directions here.

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XP does not use boot ini when dual booting with W7, –  Moab Jul 26 '10 at 17:41
    
Sorry, I meant AND edit the boot.ini. Fixing! –  JNK Jul 26 '10 at 17:46
    
Whilst this may theoretically answer the question, it would be preferable to include the essential parts of the answer here, and provide the link for reference. –  soandos Jul 16 '12 at 2:41
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