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Windows 7: Removing Windows 7 from the Primary partition of a Dual Boot system.

08 Aug 2016   #1
Mick47

Windows 7 Professional SP1 64bit
 
 
Removing Windows 7 from the Primary partition of a Dual Boot system.

I have two partitions on my HDD. A 'suspect' Windows 7 Home (that originally came with my 'refurbished' second hand laptop) is installed in the only Primary partition. A legitimate copy of Windows 7 Professional is (now) installed in an Extended Logical partition. My laptop boots up in Windows 7 Professional, if no other selection is made. I now wish to remove the suspect installation, and revert to having just one partition containing my Windows 7 Professional, without formatting the whole HDD and reinstallng/restoring everything currently on the second, logical partition. Is this possible, and if so, how?


My System SpecsSystem Spec
.
08 Aug 2016   #2
Megahertz07

Windows 7 HP
 
 

What kind of BIOS you have? UEFI or Legacy (MBR)?
Can you give us a snapshot of disk manager?
Do you have a external HDD to make a backup image of your Win 7 pro partition?
My System SpecsSystem Spec
08 Aug 2016   #3
torchwood

W7 home premium 32bit/W7HP 64bit/w10 tp insider ring
 
 

Hi Mick,
The easy way make a system image of your Pro set-up, using macrium or Acronis, both free.
Then just install it as a new but with only 1 partition

If you want to check the validity of your home premium, run this copy/paste the output
http://go.microsoft.com/fwlink/?LinkID=52012
note that comp would have come with W7 home if its 4+ years old.

Roy
My System SpecsSystem Spec
.

09 Aug 2016   #4
AddRAM

Windows 7 Pro x64 Windows 10 Pro x64
 
 

However you do it, W7 has to be installed on a Primary Partition, or you at least have to have a System Reserved partition remaining when you wipe the suspect W7 install, if not you`ll have to run a startup repair to get W7 booting again. And a startup repair does not always work.

Post a shot of Disk Management before making any changes.
My System SpecsSystem Spec
09 Aug 2016   #5
Mick47

Windows 7 Professional SP1 64bit
 
 
Removing Windows 7 from the Primary partition of a Dual Boot system

Reply to Megahertz
"What kind of BIOS do you have? UEFI or Legacy (MBR)?
Can you give us a snapshot of disk manager?
Do you have a external HDD to make a backup image of your Win 7 pro partition?[/QUOTE]"

Until yesterday I had never heard of UEFI or GPT so I'm assuming that I'm using BIOS/MBR.
Disk Manager snapshot attached.
Yes I do have an external HDD.


Attached Thumbnails
Removing Windows 7 from the Primary partition of a Dual Boot system.-disk-mangement-capture.png  
My System SpecsSystem Spec
09 Aug 2016   #6
Mick47

Windows 7 Professional SP1 64bit
 
 

Reply to:
"Hi Mick,
The easy way is to make a system image of your Pro set-up, using macrium or Acronis, both free.
Then just install it as new but with only 1 partition

If you want to check the validity of your home premium, run this copy/paste the output
http://go.microsoft.com/fwlink/?LinkID=52012
note that computer would have come with W7 home if its 4+ years old.

Roy"

Thanks Roy,
I was rather hoping to be able to do something 'simpler' like erasing/formatting the Primary partition (without deleting it) and then merging it with the other partition (using Partition Master), because I've never successfully restored anything using the Windows Backup process, and recently Backup has refused to work anyway (I'm now using EaseUS Todo). I'll investigate Macrium and/or Acronis.

I wasn't bothered about the 'suspect' Windows 7 (which Mocrosoft has already 'rejected' as not being genuine), as I already had a legitimate 64 bit Windows 7 Pro CD that I purchased to upgrade my laptop from the 32 bit Vista it came with.

Mick
My System SpecsSystem Spec
09 Aug 2016   #7
Mick47

Windows 7 Professional SP1 64bit
 
 
Removing Windows 7 from the Primary partition of a Dual Boot system

Reply to:
AddRAM
"However you do it, W7 has to be installed on a Primary Partition, or you at least have to have a System Reserved partition remaining when you wipe the suspect W7 install, if not you`ll have to run a startup repair to get W7 booting again. And a startup repair does not always work.

Post a shot of Disk Management before making any changes."

I'm not sure about the creation/use of System Reserved partitions, but will investigate. My reason for asking for help is that I don't trust the Windows Backup/Restore process or their so called Startup Repair disk as I've never had any success with either, but thanks for the warning anyway.

Snapshot of Disk Manager attached.

Mick


Attached Thumbnails
Removing Windows 7 from the Primary partition of a Dual Boot system.-disk-mangement-capture.png  
My System SpecsSystem Spec
09 Aug 2016   #8
ThrashZone

Win-7-Pro64bit 7-H-Prem-64bit
 
 

Hi,
Not sure what is on D partition but the boot..... is all on C partition so that might be your 7 pro install.
Click Start and type in the search box
msconfig
Hit the enter key
On the boot section see if C say win-7 pro or not and is default os.
If it does you can format the D partition or out an out delete it into unallocated space.

You can move the os all the way to the left using free mini tool
Best Free Partition Manager for Windows | MiniTool Partition Free

Although not sure why the C partition is tagged as Logical
My System SpecsSystem Spec
09 Aug 2016   #9
DavidE

Multi-Boot W7_Pro_x64 W8.1_Pro_x64 W10_Pro_x64
 
 

In Windows Disk Management
- The BOOT partition is where Windows is installed and running from, it can be Primary or Logical.
- The SYSTEM, ACTIVE partition is where the bootloader is, it must be Primary.

For Legacy BIOS / MBR the only partition that needs to be Primary is where the bootloader is.
A Windows OS can be installed on a Logical partition.
The Windows [C] partition can have the Windows OS and the bootloader, and i think that is what the OP wants.

If the [D] partition is deleted now, Windows will not startup.
Before the [D] partition can be deleted, the bootloader needs to be moved to [C], and [C] must be a Primary Active partition.

Also, there is very little free space now on C or D.
Less than 10% free space can cause problems, some things may not work correctly, if at all.

@Mick47
Can you get and attach a larger drive to your laptop ?
I would get a larger drive and "migrate" the Win 7 Pro to the new drive.
That way, you don't make any changes to the current drive, until you know everything works on the new drive.

You would have to be able to replace the current drive with a new drive for this approach to work.
I don't know how easy or possible that is with your laptop, or your hardware experience.

If you can't "Build/Migrate" to a new larger drive, it gets complicated and risky, making these changes to your current drive.
Make sure you have backup (images) of your current drives before making any changes.
Backup to an external drive using the program you trust such as EaseUS Todo, Macrium, etc.
My System SpecsSystem Spec
09 Aug 2016   #10
Megahertz07

Windows 7 HP
 
 

Mick, as you're going to work on the disk, you MUST have a backup of your files before you begin.
Your system is legacy - MBR
Partitions only expand to a free space to the right. You will have to make an image of your Win 7 Pro partition, delete the partition, expand the first partition to the end, format the drive, restore the Win 7 pro image and run boot repair.
As your Win 7 pro partition is bigger than the other, you just can't copy one partition to the other.

This is what I would do:
- I recommend to use AOMEI Backupper- Best Free Backup Software for Windows 10, Windows 8.1/8, Windows 7, Vista, XP
- Make a backup of your files on an external HDD.
- If you use bitlocker, you must unlock all the Win 7 Pro drive.
- Under Win 7 Home, make an image of your Win 7 Pro partition on the external HDD. As you may have some problems on copying a working drive, I suggest you do under Win 7 home. Create a bootable disk of your image program. Test if it boots.
- Under Win 7 Home, go to disk manager and delete Win 7 pro partition (logical) and extend the active partition (win 7 Home) to the end of the drive.
- Boot from the image program disk, format the whole disk and restore the image of your Win 7 Pro partition.
- With the Win 7 installation disk, repair boot loader.
My System SpecsSystem Spec
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 Removing Windows 7 from the Primary partition of a Dual Boot system.




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