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Windows 7: Dual boot XP and 7 : Uninstall of 7

06 Apr 2010   #1

Windows 7 Home Basic
 
 
Dual boot XP and 7 : Uninstall of 7

I've been using the RC of 7 for a while on my notebook. While it's a great OS for my desktop, my notebook doesn't quite have the horsepower to run it as well as it runs XP. Therefore I am looking to uninstall 7RC. I am hoping someone can give me the correct method since I know the PC can become unbootable if borked up.

I found a few guides here for uninstalling XP in a dual boot, but not for uninstalling 7.

Notebook PC info:

- One physical drive, 3 partitions.
- XP installed first on partition C (which is basic, 'boot' partition)
- 7RC installed on partition E (basic partition)
- my stuff on partition D (basic, 'system' partition)

I don't mind if the partitions are left as is. I just want to auto boot into XP and be able to delete the Windows 7 stuff on partition E.

BTW I used Easy BCD to get the boot choice thing going originally, and Acronis Disk Director Suite 10 for the partitioning.

Thanks for any help.

My System SpecsSystem Spec
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06 Apr 2010   #2

W7 Ult. x64 | OS X
 
 

My System SpecsSystem Spec
06 Apr 2010   #3
Microsoft MVP

 

I wonder why your data drive holds the System MBR? This is unusual. It should be on an OS drive.

Please post back a screenshot of your full Disk Management drive map, using SNipping Tool in Start Menu - attach file using paper clip in Reply Box.

Tell us to where you want to recover RC HD space.
My System SpecsSystem Spec
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07 Apr 2010   #4

Windows 7 Home Basic
 
 

Quote   Quote: Originally Posted by gregrocker View Post
I wonder why your data drive holds the System MBR? This is unusual. It should be on an OS drive.

Tell us to where you want to recover RC HD space.
Is this what you wanted to see?

Yes it may be unusual. It's an Acer notebook and I think the D partition was used for the Acer system restore originally. At least until I started using it for my stuff.

I'd like to recover the space used by the Win 7 program files. Forgive any confusion with the first post. In Win XP partition C is the XP OS, and in Win 7 partition C is the Win 7 OS.

Thanks for your time and help.

Quote   Quote: Originally Posted by notsograymatter View Post
Google is my friend
Normally Google is my friend too. However I have followed a generic guide for doing this before and my system ended up not starting. I don't know enough about MBRs etc to trust myself, and the stakes are so high. Thus my turn to the trusted and knowledgeable folks here.


Attached Thumbnails
Dual boot XP and 7 : Uninstall of 7-disk.jpg  
My System SpecsSystem Spec
16 Apr 2010   #5

Windows 7 Home Basic
 
 

Since there was a week without a reply I took the plunge and followed the guide above. It's back to booting into just XP. Great. Now the only problem is that I am trying to delete the Windows 7 'Program Files, ProgramData and Windows' folders to free up space and I am getting this message:

Error Deleting File or Folder. Cannot delete xxxx. Access is denied.

Can anyone give me a tip of what to do next? I realize this is an XP thing but perhaps someone here might know.
My System SpecsSystem Spec
16 Apr 2010   #6

W7, Xp Pro
 
 

what does your disk manager look like now. post img

not like above i hope. boot is on c:?
My System SpecsSystem Spec
16 Apr 2010   #7

Windows 7 Home Basic
 
 

This is what Windows XP Disk Management reports. Forgive the lack of a screenshot.

Windows XP C: Healthy (Boot)
My Stuff D: Healthy (System)
Windows 7 E: Healthy

All NTFS Basic partitions. Note that in the screenshot a few posts above (from Windows 7 Disk Management) the C partition was the Windows 7 drive, whereas in XP the C partition is the Windows XP drive. I just liked the OS always on the C drive, at least according to the OS lettering system.

I guess if there is no easy solution I shall just transfer everything I want to save from the old Windows 7 partition (40GB) before formatting it.
My System SpecsSystem Spec
16 Apr 2010   #8

W7, Xp Pro
 
 

Quote   Quote: Originally Posted by Fritz Fraghof View Post
This is what Windows XP Disk Management reports. Forgive the lack of a screenshot.

Windows XP C: Healthy (Boot)
My Stuff D: Healthy (System)
Windows 7 E: Healthy

All NTFS Basic partitions. Note that in the screenshot a few posts above (from Windows 7 Disk Management) the C partition was the Windows 7 drive, whereas in XP the C partition is the Windows XP drive. I just liked the OS always on the C drive, at least according to the OS lettering system.

I guess if there is no easy solution I shall just transfer everything I want to save from the old Windows 7 partition (40GB) before formatting it.
I had to do the same a few times,

Hope you end up happy
My System SpecsSystem Spec
16 Apr 2010   #9
Microsoft MVP

 

You do not want to delete the folders in the Windows 7 partition, you want to delete the partition itself in Disk Management.

I asked to where you want to recover the HD space. Using a partition manager, you can both delete Windows 7 partition and Resize XP into the deleted space if you want.

You have a less desirable situation there with XP way out in right field where it is furthest from laser. Much better to have OS on first partition, or closer to the center as it would be if you Resize it into deleted Windows 7 space.

I suggest free Partition Wizard bootable CD to do this. Back up your files as Resizing operations can fail, although you shouldn't have to worry about repairing the MBR since it remains on D partition. To recover/repair it into XP partition, you would run an XP repair install from boot.
My System SpecsSystem Spec
16 Apr 2010   #10

Windows 7 Home Basic
 
 

Quote   Quote: Originally Posted by gregrocker View Post
You have a less desirable situation there with XP way out in right field where it is furthest from laser. Much better to have OS on first partition, or closer to the center as it would be if you Resize it into deleted Windows 7 space.
Thanks for your tips. So you are saying that performance suffers if the OS is not on the left most partition? I had no idea about this. I am far from being an expert in working with partitions.

When you say "Back up your files as Resizing operations can fail,", did you mean with the free Partition Wizard bootable CD? I normally use Acronis Disk Director Suite 10 for the partitioning. Is there always a risk of data loss with partitioning? If so, I shall avoid it whenever possible. I don't have an easy way to back up my data at the moment.
My System SpecsSystem Spec
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 Dual boot XP and 7 : Uninstall of 7




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