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Windows 7: Delete XP dual boot

25 Dec 2009   #1
RogerR

7 x64 Ultimate
 
 
Delete XP dual boot

I see no reason to keep my XP dual boot. The XP installation is on a discrete physical drive. Win7 is on an active drive set as the first boot drive in BIOS and is the default OS at system startup.

Can I just remove the drive and do a 7 startup repair to fix the boot, or are there more necessary steps?


My System SpecsSystem Spec
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25 Dec 2009   #2
nate42nd

Windows 7 Professional x64
 
 

I have done 3 like this but they were all on the same drive but different partitions. This should be even easier. I had to use easyBCD on one. You should be able to simply format the drive with XP after getting the data off.

I would disconnect the XP drive first, just to make sure 7 boots. That way you can be sure and if there's a need for easyBCD you could connect the XP drive and do some work.

Good luck!
My System SpecsSystem Spec
25 Dec 2009   #3
Minotar

Windows 7 Ultimate 64bit
 
 

Quote   Quote: Originally Posted by nate42nd View Post

I would disconnect the XP drive first, just to make sure 7 boots. That way you can be sure and if there's a need for easyBCD you could connect the XP drive and do some work.

Good luck!
Agreed,the XP drive could have the BOOTMNGR on it.
My System SpecsSystem Spec
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25 Dec 2009   #4
nate42nd

Windows 7 Professional x64
 
 

Quote   Quote: Originally Posted by Minotar View Post
Quote   Quote: Originally Posted by nate42nd View Post

I would disconnect the XP drive first, just to make sure 7 boots. That way you can be sure and if there's a need for easyBCD you could connect the XP drive and do some work.

Good luck!
Agreed,the XP drive could have the BOOTMNGR on it.
Yes, do this first. It's not to hard for the info you would gain. Yo could run BCDedit and find out the same thing but it woudl be easier to just unhook the drive and find out.
My System SpecsSystem Spec
25 Dec 2009   #5
gregrocker

 

Hi again Roger!

Please post back a screenshot of your full Disk Management map, using Snipping Tool in Start Menu and attaching file with paper clip in reply box.
My System SpecsSystem Spec
25 Dec 2009   #6
Night Hawk

W7 Ultimate x64/W10 Pro x64 dual boot main build-remote pc W10 Pro x64 Insider Preview/W7 Pro x64
 
 

When going to remove XP from the dual boot first make sure 7 is set as the default OS. If you are using EasyBCD that's easy enough to remove the XP entry from the 7 BCD store. If both of the hard drives are sata models you can swap data cables between drives if the 7 is not already plugged into the first sata port and simply reformat the XP drive once you have all files you want backed up from it.

If one is an ide drive with XP on that you can still reformat it while booted in 7 but will need to unplug it to perform any startup repair if needed. The Windows installer will look for an ide drive first or the first sata with any install or repair to place boot files and mbr entries there.

If 7 was installed last without the EasyBCD tool used you can download another free BCD editing tool that requires no installation in order to remove the XP entry. The BellaVista tool is a zip file containing two folders for the 32bit and 64bit bellavista.exe file you simply run from the folder you extract both to. System Tools - BellaVista

The first thing to find out however is which drive has the bootmgr file and Boot folder on that should be the 7 drive already since you have that set as the default boot drive.


Attached Images
Delete XP dual boot-bellavista-folder-1.jpg Delete XP dual boot-bellavista-folder-2.jpg 
My System SpecsSystem Spec
25 Dec 2009   #7
RogerR

7 x64 Ultimate
 
 

I have already checked that the system boots through to Win7 with the XP drive disconnected. However, I still get the dual boot screen (however briefly - since I have delay set to zero).


Attached Images
Delete XP dual boot-clipboard01.png 
My System SpecsSystem Spec
25 Dec 2009   #8
SIW2

Microsoft Community Contributor Award Recipient

Vista x64 / 7 X64
 
 

In 7, open an elevated command and type:

bcdedit /delete {ntldr} /f

then press enter.

In the screenshot , you are booting through the XP partition.

Since you are able to boot into 7 without the XP drive attached, I assume you have the boot critical files on Win 7 partition as well.

If so, set Disk 1 as the first HD in Bios boot order.

Or mark XP partition inactive - in an elevated cmd :

diskpart

sel disk 0

sel vol d

inact

exi
My System SpecsSystem Spec
25 Dec 2009   #9
RogerR

7 x64 Ultimate
 
 

Simply setting the C:/ drive to boot first seemed to resolve the issue.
My System SpecsSystem Spec
25 Dec 2009   #10
gregrocker

 

Can you delete your XP partition now when you plug that drive back in?

If not, as suggested you may need to use Diskpart commands to mark XP drive inactive.

Open an elevated command prompt, type:

DISKPART
List disk
Select disk # (for XP HD)
List partition
Select partition # (for XP part)
Inactive
exit

Now you can format as desired in Win7 Disk Management.
My System SpecsSystem Spec
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 Delete XP dual boot




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