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Can boot to XP or Win7 by changing Sys Bootloader only.

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Can boot to XP or Win7 by changing Sys Bootloader only.

Postby detredwingsfan » Sat Jun 25, 2011 12:13 am

I can boot directly to Win XP Pro by installing the System Bootloader to Windows Legacy. However, there will not be a dual boot selection screen before it boots to Win XP Pro.
If I set the System Bootloader to Win7 I get the dual boot screen 1) Win XP 2) Win 7. If I try to boot to Win XP, I get the error that /ntldr is missing or corrupt.
The boot info from Win XP is;
Entry 1
-------------------------------
Name: Win XP Pro
BCD ID: {ntldr}
Boot Drive: D:
System Bootloader: \ntldr

Entry 2
---------------------------------
Name: Windows 7
BCD ID: .........
Boot Drive: F:
Windows Drive F:
System Bootloader: \windows\system32\winload.exe
Windows Directory: \windows

Now I change the System Bootloader to Windows7 and install it. Now it will display the dual boot menu and I now select Win7.
The boot info from Window7 is;
Entry 1
-------------------------------
Name: Win XP Pro
BCD ID: {ntldr}
Boot Drive: E:
System Bootloader: \ntldr

Entry 2
---------------------------------
Name: Windows 7
BCD ID: {current}
Boot Drive: C:
Windows Drive C:
System Bootloader: \windows\system32\winload.exe
Windows Directory: \windows

This computer came with Windows 7. I changed the drive setup to create 2 separate partitions. Win 7 is the original and Win XP the new logical drive.

How can I get the Dual Boot Screen and be able to Select Win XP?
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Re: Can boot to XP or Win7 by changing Sys Bootloader only.

Postby yeshuas » Sat Jun 25, 2011 12:55 am

How did you install XP Pro, i.e. what process steps did you do

copy and paste your boot.ini file here.

Post your Disk Management screen here too


locate these 3 files NTDETECT.com, ntldr and boot.ini and copy them to the root directory of the Windows 7 drive, you will have to change the folder options so you can see them, go to folder options, view tab and uncheck "Hide protected operating system files", and put a check in "Show hidden files and folders and drives"
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Re: Can boot to XP or Win7 by changing Sys Bootloader only.

Postby detredwingsfan » Sat Jun 25, 2011 2:22 am

Thanks for the info. I forgot that XP as installed has System Files viewing turned off. I reset it but could not find the files NTDETECT.com, ntldr and boot.ini on either the XP or Win7 partitions. I copied them from another XP computer, installed them in both partitions and now I can boot to either XP Pro or Win7.

I was surprised that they were not on the Win7 computer partition and were not installed when installed XP Pro on the XP partition. I thought that Dual Boot Pro would install the necessary files or detect that they were missing.

But it now works so I really appreciate the help. Thanks!
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Re: Can boot to XP or Win7 by changing Sys Bootloader only.

Postby yeshuas » Sat Jun 25, 2011 10:55 am

Glad that worked for you, the reason that you couldn't see the files is probably because you didn't look on the small partition that Windows 7 creates and where the system files are for Windows 7, it is about 100MB, unlettered and un-named, at any rate glad it is working (-:
Game Over!!!!!!!!
Image
ASUS Maximus V Gene MB
Windows 8 X64; Windows 7 X64; Windows 7 X86
Intel I5-3570K
16GB Corsair Vengeance Ram
eVGA GeForce GTX 550 TI
Corsair GS700 PS
1TB Seagate SATA 6.0Gb HD
Thermaltake Case
Software Development
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Posts: 5075
Joined: Wed Jan 17, 2007 3:29 pm
Location: Chicago, IL
Real Name: Daniel Schmidt

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