Merging Bootable drive with Unallocated Drive

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Jairaj

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Sep 28, 2013
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Hello.

I need to merge my bootable C Drive with Unallocated Drive in Windows 7. I have tried all these steps mentioned, but still I'm unable to get the "Extend Volume" in Disk Management and I don't get the option to select Unallocated drive in both Easeus or Partition allocation software. Please HELP!! I have very less space in C Drive and I'm unable to install any software.

Few software will install only on the C drive, hence I need to extend its size.

Thanks in advance.
Jairaj
 
Solution
RealBeast
If the unallocated space is on the same physical drive, I would use diskpart commands in an elevated command prompt window. THIS LINK is a tutorial (in option two) of the commands needed to accomplish the volume extend.
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Jairaj

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Sep 28, 2013
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Thanks for your reply.

When you enter 'list disk' in command prompt, I see no free space available..:(

Little Background:
I had three drives - C D and E. C has very low space and D has more. So using Easeus, I created some 'unallocated space' using D Drive. Now I want it to be merged with C Drive but not able to do so..

I don't want to re-install the OS completely nor do I have the Installation Disk. Please let me know what to do.
 
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RealBeast

RealBeast

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Sep 13, 2010
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Okay, so they are three separate physical drives. You can't use the extend from one physical drive to another, only for partitions on one drive.

Before you do anything else, backup your data and download a Windows 7 image of the same version that you use from HERE and burn to a DVD so that you have it if needed.

My thought is that you may want to try extending into an NTFS folder on another physical drive -- the D has unallocated space so that's what we will use. Format the unallocated space on D quick format NTFS as some other drive letter not already in use -- for now let's call it the M partition, and create an empty folder on that partition called something like C_Drive as the folder name.

Then go into disk management, right click on the C drive, select change drive letters and paths, click on the add button, and then in the "Mount in the following empty NTFS folder" type the folder path in the box (so using the example drive letter above -- it would be M:\C_Drive), then click on OK.

This should add all the empty space on the M partition to the C drive space if you don't store anything else on that partition directly.

A better long term solution would be to buy a larger OS drive and clone your old OS drive onto the new larger drive using the option to resize the cloned drive to fill unallocated space on the new drive. Note: I have never tried to clone a drive that uses a folder on another partition, so I would not recommend trying that after extending to the folder on another drive.
 
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