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Denis343-1043 avatar image
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Denis343-1043 asked Docs-4663 commented

Deleting unused parts of disk

Hello, i updated win10 to win11 and i used it for a couple of weeks, it was time to dust my pc(unplugged only the cables), after cleaning i got BSoD(it was error kinda "efi bootloader"), fixed it. After i checked disk manager and saw 2 unused parts of disk, tried to delete it from there and using other software, but unsuccessfully. Can you help to solve this problem?200587-kcjk234sdfstw4t.jpg


windows-11
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Docs-4663 answered Docs-4663 commented

The 763 MB of unallocated space (10 + 753) can be used.

In order to use it the partitions need to moved.

This can be accomplished with third party software.

(MiniTool partition wizard, Disk Genius, etc.)

https://www.lifewire.com/free-disk-partition-software-tools-2624950


Disk Management often does not display all partitions on a disk drive.
(the hidden partitions are not seen)

Normally a GPT partition has 4 default partitions.
The reserved partition is hidden and typically not seen in disk management.
The recovery partition is missing and was likely the 753 MB partition.

If you use a bootable Media Creation Tool MCT (windows 10 iso) or if you routinely make backup images then you can do without a recovery partition.
However it is handy when there are Windows problems, for example, failure to boot.


See Partition Layout:
https://docs.microsoft.com/en-us/windows-hardware/manufacture/desktop/configure-uefigpt-based-hard-drive-partitions?view=windows-11


In order to see the hidden partitions open administrative command prompt and copy and paste (all at one time):

diskpart
lis dis
det dis
lis vol
lis par
sel par 1
det par
sel par 2
det par
sel par 3
det par
sel par 4
det par
sel par 5
det par
sel dis 1
det dis
lis par
sel par 1
det par
sel par 2
det par


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I deleted all parts of disk with Command prompt in recovery mode and created it again(1 part for EFI 99MB and 1 part for i can't remember it was 16MB). Thanks for helping, i think this issue doesn't deserve much attention.

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An additional method to address the partition issues is to make a free backup image.

Then clean install Windows.

Then restore only the C: partition.

Then you've got the optimal configuration as in the link image: system, reserved, data, recovery

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SSengupta-4080 avatar image
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SSengupta-4080 answered Denis343-1043 edited
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Hello, thanks for answer, but i'm not sure that this article about my problem

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Docs-4663 avatar image
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Docs-4663 answered Denis343-1043 commented

The computer has unallocated space.
There is nothing to delete in unallocated space.
The maximum space that can be used is less than 1 GB.
The 763 MB may be able to be used however in almost all cases it is not worth the time and effort.


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Hello, thanks for answer, but i mean that i need to merge unallocated space, is it possible?

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