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Windows 7: I messed up...

28 Feb 2009   #1

Windows Vista
 
 
I messed up...

So I'm pretty sure I know exactly the mistake I made, I'm just having difficulty solving the problem.

So I read a guide somewhere on how to setup dual-booting into Windows 7 and Vista, followed it exactly and I did manage to get Windows 7 to boot fine. Unfortunately, when I tried to boot into Vista, I got a black screen and then a very brief BSOD before it would return to the bootloader.

What I've realized is, this guide didn't tell me to give my created Windows 7 partition a drive letter; when I boot into 7, it calls itself C:, and that's what my Vista partition was. Complicating things further, I assigned my Vista partition to G: after the successful Windows 7 install in order to get access to it within 7.

What can I do about this? If it means uninstalling and re-installing Windows 7 that's completely fine, I just need to be able to boot into Vista again.

And if it means anything, I've downloaded a Vista recovery disc and I can boot that, I just don't know what I would do within it.

My System SpecsSystem Spec
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28 Feb 2009   #2

Windows 7 Ultimate x64 x2 + x86 + Windows 8.1 x64 x2
 
 

Hi dspr1, and welcome to the Seven Fourums

Fist, don't worry about the C: drive assignment Seven and vista will normally allocate themselves as the C: drive when they are the active operating system.

If you use the Vista DVD or repair disc to perform a start-up repair this will hopefully recover you vista to a working state. When you are at the repair my computer screen you should see two operating systems displayed choose the Vista entry to repair. you may end up with three os's showing on the boot screen, Windows 7, Vista, and Vista recovered. If you do post back and we will be able to help remove the extra entry

Startup Repair - Vista Forums
My System SpecsSystem Spec
28 Feb 2009   #3

Windows Vista
 
 

Okay. This is starting to get weird.

I let the repair disc do its thing, it said it found something, repaired it, and if I reboot my computer and select Vista, it'll load, go to a screen where it says "Installing update 3 of 3: 0%" and it will restart right back to the bootloader. If I pick Windows 7, I get a black screen, and it again goes right back to the bootloader. I can still use my repair disc, but it doesn't detect a problem.

I'm stumped at this point.
My System SpecsSystem Spec
.


28 Feb 2009   #4

Windows Vista
 
 

I should add that I am able to run a command prompt through the recovery disc as well..
My System SpecsSystem Spec
28 Feb 2009   #5

Windows 7 Ultimate x64 x2 + x86 + Windows 8.1 x64 x2
 
 

Hi,

I am assuming that you do not have an actual Vista DVD. If so would it be possible for you to borrow one (family?, friend?), if you can this will give you the option of a repair install. It appears that the problem is beyond the start-up files.

Repair Install For Vista


My System SpecsSystem Spec
28 Feb 2009   #6

Windows Vista
 
 

Yeah, it's a brand new HP laptop and they insist on not shipping the Vista discs with the computers, damn them.

But in the command prompt in BCDEDIT, I noticed something kind of strange. Under both the Windows 7 and Windows Vista entries, "device partition=C:", and "osdevice" has Windows 7 as C, and Vista as D.

Could this be what's going on?

I'll do anything to be able to boot into either 7 or Vista at this point.
My System SpecsSystem Spec
28 Feb 2009   #7

Windows Vista
 
 

Okay, I might have gotten somewhere. I was mucking around in the command prompt I could run after clicking System Restore and having nothing happen, and 15 minutes later, I'm apparently initiating a system restore to a few days ago before I got myself into this mess. I might be good, I'll keep you posted, but thanks so far.
My System SpecsSystem Spec
28 Feb 2009   #8

Windows Vista
 
 

Alright, booting into Vista now with no problems whatsoever. It just took an ungodly amount of time for the System Recovery on the recovery disc to show up and give me some options.

Thanks so much for the help! I'll be sure to not make this mistake again..
My System SpecsSystem Spec
28 Feb 2009   #9

Windows 7 Ultimate x64 x2 + x86 + Windows 8.1 x64 x2
 
 

Glad to hear you're sorted out,

HP's do ship with some quite reasonable system backup disk options you may want to see what yours is shipped with as now you have a working system may be a good time to create some disks that you will hopefully never need
My System SpecsSystem Spec
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