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Windows 7: Remove dual boot

21 Jul 2013   #1

Win 7 32 bit
 
 
Remove dual boot

I have 2 copies of win 7 installed in a dual boot configuration the older one is on the C: drive and the other is on the L: drive I want to remove the one on the C: drive but I donít want to lose the boot mgr, can someone instruct me on how to do this? My thought was to make a disk image of the one I want to keep (L then reformat the C: drive and install the backup image on the C: drive. Any help I can get will be appreciated, Bob

My System SpecsSystem Spec
21 Jul 2013   #2

 

All you have to do is change the boot order in the BIOS so the other drive is first. Then it will be C: and the other drive will get some random letter (such as D: or E: or whatever letter is next in line).

So, the drive letter is always determined by the installation of Windows that you are booted into.
My System SpecsSystem Spec
21 Jul 2013   #3

Win 7 Pro x64 SP1, Win 7 Ult x86 SP1
 
 

Are C and L different HDs, or different partitions on the same HD?
You should post a screen shot of Disk Management for this.
Disk Management - Post a Screen Capture Image

If one of the OSs has the letter L when it is booted, I believe that means you started the 2nd Windows install while you were running the first OS ?
Or, did you boot the Windows DVD to do the 2nd install ?
My System SpecsSystem Spec
.


21 Jul 2013   #4

Win 7
 
 
Remove dual boot

I neglected to indicate that the 2 copies are on the same physical drive and I installed the second one on a newly created partition from an installation DVD.
My System SpecsSystem Spec
21 Jul 2013   #5
Microsoft MVP

 

We need to see the screenshot of Disk Management - Post a Screen Capture Image - Windows 7 Help Forums.

We'll be able to tell you what you need to know then.
My System SpecsSystem Spec
22 Jul 2013   #6

Win 7
 
 

Remove dual boot-disk-management-screen-shot.jpg


My System SpecsSystem Spec
22 Jul 2013   #7

Win 7
 
 

As you requested.
My System SpecsSystem Spec
22 Jul 2013   #8
Microsoft MVP

 

Well since you're booted into the Windows 7 on L as signified by the Boot flag on its partition, it means you must have run the Windows 7 installer from C instead of correctly booting it to install to its partition which would have made it C whenever it was booted.

So the question then becomes if you want to keep a Windows 7 install on L drive which most user's do not. If not then I would back up your files, unplug all other HD's and peripherals, boot the installer to Clean Install Windows 7. Using the Drive Options in Steps 7/8 delete all partitions and create new as you wish or just click Next if you have no partition scheme in mind.

If you don't mind having Windows 7 on L, then Partition - Mark as Active the L partition, boot into the Windows 7 installer or Repair CD - System Repair Disk to run Startup Repair - Run 3 Separate Times until it boots and the System Active flags are both on L.

You can then delete C and recover its space as shown in Partition : Recover Space Used by an Older OS so that Windows 7 is in the preferred left hand position for faster reads.
My System SpecsSystem Spec
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 Remove dual boot





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