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Windows 7: Error after installing Win XP on partition

16 Sep 2009   #1

Windows 7
 
 
Error after installing Win XP on partition

Hi -

I have Windows 7 64 bit installed on my computer but needed to install a program only compatible with 32 bit, so decided to create a new 3GB partition using the in-built feature in Windows 7 and install Windows XP on it.

I booted up XP, formatted the partition again,a nd let it run through the set up, but as soon as it had copied the files and rebooted, I got the error message 'error loading operating system'.

I really don't know how to fix this - I'm not bothered about installing XP, I can do without it, but the main thing is getting back onto Windows 7 as I have all my files there. I didn't bother making a back up as I thought any problems that could occur would be limited to the partition that I installed Win XP on.

I tried the 'start up repair' utility on the Windows 7 boot disk, and although that said it had repaired a problem, I still get the same error. Although one strange thing I've noticed is that it says that Windows 7 is located on '(E:\ ) Local Disk' when it was definitely installed on the D:\ drive - E:\ was the new partition of size 3GB with Win XP installed, but according to this it is 400GB + with Windows 7..

Any advice?

Thank you.


My System SpecsSystem Spec
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16 Sep 2009   #2

XP, Seven, 2008R2
 
 

shyamt,

how are you posting in the forum? are you using a different computer?

did you change any BIOS settings? that error typically occurs when the BIOS tries to load the operating system from a device that doesn't have a master boot record.
My System SpecsSystem Spec
16 Sep 2009   #3

Windows 7
 
 

Quote   Quote: Originally Posted by sup3rsprt View Post
shyamt,

how are you posting in the forum? are you using a different computer?

did you change any BIOS settings? that error typically occurs when the BIOS tries to load the operating system from a device that doesn't have a master boot record.
Yes I posted from another computer, but since then have got Windows 7 running again. After trying various steps I managed to get Win 7 back by using the bootrec.exe via command promp on my Windows 7 DVD. Although the set up files are on the partition I created for XP, I don't think it was installed.

I tried re-installing XP after, but ran into the same problem, and resolved the same way.

I really do want to get XP working.. Any ideas on how to fix this? Do you think it's worth trying again with Vista?

Thanks
My System SpecsSystem Spec
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16 Sep 2009   #4

XP, Seven, 2008R2
 
 

are you trying to install Windows XP on the same hard disk as Windows 7?

That is what I always do, and haven't had a problem.
My System SpecsSystem Spec
16 Sep 2009   #5

Windows 7
 
 

Quote   Quote: Originally Posted by sup3rsprt View Post
are you trying to install Windows XP on the same hard disk as Windows 7?

That is what I always do, and haven't had a problem.
Yes, exactly that...
My System SpecsSystem Spec
16 Sep 2009   #6

XP, Seven, 2008R2
 
 

ok what's probably happening is that Windows XP installation is overwriting the MBR and now your computer cannot boot. I suspect that you are installing Windows XP to a logical partition which means the boot files for XP will need to exist on the Windows 7 partition (because logical partitions cannot be set as bootable).
My System SpecsSystem Spec
16 Sep 2009   #7

Windows 7
 
 

Quote   Quote: Originally Posted by sup3rsprt View Post
ok what's probably happening is that Windows XP installation is overwriting the MBR and now your computer cannot boot. I suspect that you are installing Windows XP to a logical partition which means the boot files for XP will need to exist on the Windows 7 partition (because logical partitions cannot be set as bootable).
But I just created the partition through Windows 7's own disk management - I'm sure I did it exactly as described on an online guide?

Do you know how I can get around this?
My System SpecsSystem Spec
16 Sep 2009   #8

XP, Seven, 2008R2
 
 

Perhaps you can attach a screenshot of Disk Management so we can have a look.

Once I know the problem I can probably show you how to get around it.
My System SpecsSystem Spec
16 Sep 2009   #9

Windows 7
 
 

Quote   Quote: Originally Posted by sup3rsprt View Post
Perhaps you can attach a screenshot of Disk Management so we can have a look.

Once I know the problem I can probably show you how to get around it.
Okay screenshot is below. It does say logical drive, but I don't think there's any other option?

My System SpecsSystem Spec
16 Sep 2009   #10

XP, Seven, 2008R2
 
 

Yes, delete it and make a primary partition.

By the way, the best guide is on this site:

Dual Boot Installation with Windows 7 and XP
My System SpecsSystem Spec
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