📎 AI Summary:
The thread discusses an issue with removing a dual-boot partition of Windows 10 from a Windows 7 system, where the user initially encountered difficulty extending the C drive after deleting the Windows 10 partition. The user resolves the problem and confirms it later. A contributor explains that having three primary partitions affects how freed space is labeled—either as free space within an extended partition or unallocated space—depending on partition types. Overall, the user successfully fixed the volume extension issue after initial trouble.
davidhk129

davidhk129

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Joined
May 19, 2012
Messages
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Thread Author #1
Win 7 Home Premium.

I was doing dual boot with Win 7 and Win 10 TP.
I decided to remove the dual boot.
So, I went to disk management and removed the volume where Win 10 was. The trouble is, the partition should be marked as unallocated. Instead it is marked as free space.
Now, I right clicked at C and the Extend Volume is inactive.
How do I fixed that?

P.S. I did the same thing on my other laptop dual booting Win 8.1.1 Pro and Win 10 TP, and I was successful removing the dual boot and extend the volume back to C.
But this time, something I did went wrong.

An image from 'Extend Volume grayed out.'. Disk 0 shows 596.17 GB with partitions: recovery, system reserved, main, and 100 GB free.
 

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Solution
A
Because you already have three primary partitions, so when you take any space out, it would go into extended partition. If the space belongs to extended partition, it would be marked as FREE SPACE, if it belongs to primary partition, it would be marked as UNALLOCATED.
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A

Anna Lan

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Oct 27, 2015
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#3
Because you already have three primary partitions, so when you take any space out, it would go into extended partition. If the space belongs to extended partition, it would be marked as FREE SPACE, if it belongs to primary partition, it would be marked as UNALLOCATED.
 

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