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Windows 7: Dual Boot - Delete a OS

19 Dec 2014   #80
MCabZ

windows 7 ultimate x64
 
 

Quote   Quote: Originally Posted by gregrocker View Post
It would be best for us to first see a screenshot of Disk Management - Post a Screen Capture Image . We need to confirm that Win7 or it's 100mb System Reserved partition is marked "System Active" confirming it is indeed booting itself.

If so then first check in msconfig>Boot to see if the duplicate listing exists to delete it there.

If not install EasyBCD (click Download - no Name or Email required) to delete the extra listing there.
Thanks for the reply. Attached is the requested image. It's in Spanish but I believe the information is clear. Once it is clear that Windows 7 is booting up properly I plan to remove the HDD with XP.




Attached Thumbnails
Dual Boot - Delete a OS-hdd.jpg  
My System SpecsSystem Spec
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19 Dec 2014   #81
gregrocker

 

It looks like Win7 is booting itself okay but XP should not be marked Active, so if you're done with XP you can wipe the HD using Diskpart Clean Command, or if you want to keep it then to run it with Win7 I would mark the XP Partition - Mark as Inactive - Windows 7 Forums.

Then follow the steps above to remove the duplicate OS listing.
My System SpecsSystem Spec
19 Dec 2014   #82
MCabZ

windows 7 ultimate x64
 
 

Quote   Quote: Originally Posted by gregrocker View Post
It looks like Win7 is booting itself okay but XP should not be marked Active, so if you're done with XP you can wipe the HD using Diskpart Clean Command, or if you want to keep it then to run it with Win7 I would mark the XP Partition - Mark as Inactive - Windows 7 Forums.

Then follow the steps above to remove the duplicate OS listing.
Thanks for the reply. What I want do requires a much simpler solution IMHO. As I mentioned, I plan to remove the HDD with XP once I am confident that Win7 is booting properly.

Questions:
1. Will removing the HDD with XP automatically eliminate the boot option screen and thus boot directly into Win7 ?
2. Will selecting skip the boot menu in EasyBCD> Edit boot menu>Delete (one of the Win7 entries) and then Skip the Boot Menu, Save the Settings, suffice ?



Trying to solve this from a remote computer otherwise I would just go ahead and do it.
TIA


Attached Images
Dual Boot - Delete a OS-easybcd.jpg 
My System SpecsSystem Spec
19 Dec 2014   #83
gregrocker

 

I've given you exactly what has worked best in thousands of similar cases so what information tells you there is a simpler solution? You are at the top tech forums in web history.

To avoid future problems you want the BCD on Win7 edited to remove the Dual Boot listing if it remains after XP is unplugged which it likely will since its not even an XP listing but a duplicate Win7 listing you somehow created.

I've already told you Win7 can boot itself so unplug the other drive and complete the steps I gave you. If you intend to use XP drive again it is best to wipe it of boot code to avoid future problems even if its formatted or deleted.
My System SpecsSystem Spec
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17 Feb 2015   #84
windowsguy123

Windows 8 x64
 
 

When I tried steps 4 and 5, my computer got the infamous "Windows Boot Manager" error screen after rebooting and now my computer won't start. Not even F8 will work. Please help.
My System SpecsSystem Spec
16 Mar 2015   #85
119baystate

WIN 7 32 bit
 
 

This is GREAT, (I am referring to the tutorial of course, not the other jibberish postings)

I am doing a clean install, but I was concerned about losing some program info from the old system. This allows me to create a dual boot: 1) OLD system; 2) CLEAN system. Once I am comfortable with the CLEAN system then I can delete the OLD. I was afraid I would have to execute that procedure from the CMD shell.

Hopefully, you will not hear from me in the future when I actually delete the OLD system & have boot problems.

This I will file away for reference--
My System SpecsSystem Spec
08 Apr 2015   #86
Bad Hand

Windows 7 32bit/ WP Pro 32 bit
 
 

I have Windows 7 dual boot and XP on separate drives and I want to remove the dual boot. I need to remove the XP drive from my computer.
My System SpecsSystem Spec
08 Apr 2015   #87
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

Quote   Quote: Originally Posted by Bad Hand View Post
I have Windows 7 dual boot and XP on separate drives and I want to remove the dual boot. I need to remove the XP drive from my computer.
Are their BCDs in the same bootmgr ?
My System SpecsSystem Spec
18 May 2015   #88
driansmith

Windows 7 - 64 bit
 
 

Could anyone help me on this very simple (I'm sure) issue?
I am stuck at the stage where I am trying to copy over the MBR into the Windows 7 partition (via EasyBCD).
The problem seems to be that the partition is only Logical and not Primary.

Dual Boot - Delete a OS-partition-1.jpg

As I get this error:
Dual Boot - Delete a OS-partition-2.jpg

Can I just change the partition from Logical to Primary? (via EasyBCD) ???

Many Thanks


My System SpecsSystem Spec
18 May 2015   #89
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

You cannot copy the MBR - the MBR is a fixed area of 512 bytes ot the beginning of the disk.

What you can do is to copy the bootmgr to the C partition. Here is how:

Bootmgr - Move to C:\ with EasyBCD
My System SpecsSystem Spec
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