Solved Windows 11 left and empty 93GB partition?


Calab

Calab

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When I installed Windows 11, it was on a blank 1TB NVME drive with no partitions. After the installation I am left with four partitions.

Disk Manager shows the following:
#1 = 100 mb EFI partition
#2 - 837 gb C:
#3 - 93 gb unallocated partition
#4 - 749 mb unknown partition (recovery? Does Windows user this space when doing a reset?)

I opened Diskpart to try to assign a letter to partition #3, but Diskpart does not agree with Disk Manager. There is no 93gb partition listed.

DiskManager.png

Diskpart.png

Why would windows leave a 93 gb unallocated space on my drive? Why doesn't Diskpart and Disk Manager agree with each other? Can I grow my 837 gb partition using the 93 gb space?
 
Windows Build/Version
Version 23H2, build 22631.3155

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With some searching, I learned that this may have been created by the Samsung Magician software from my SSD 980 Pro drive. I have since reset Windows and haven't installed the Samsung software.

I still don't understand why Diskpart and Disk Manager don't agree.
 

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Calab said:
Can I grow my 837 gb partition using the 93 gb space?
Click to expand...


Yes.

1. Right click the C:\ drive and choose "extend volume"
2. Then tell it to use the 93GB unallocated space.




It's easier with Minitool Partition Wizard (free)...

Best Free Partition Manager for Windows | MiniTool Partition Wizard Free

As an all-in-one free partition manager and disk manager software, MiniTool Partition Wizard Free helps manage disk space safely on Windows 11/10/8/7.
www.partitionwizard.com www.partitionwizard.com
 

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I still don't understand why Diskpart and Disk Manager don't agree.
Click to expand...
Unallocated space is not a partition.

That is why diskpart list partition does not list it.

Unallocated is space that is not inside a partition.

Free space is unused space that is inside a partition
 

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FYI Samsung Magician shouldn't do this without the user setting this option as this is an optional setting.
 

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I'm a computer enthusiast so have quite a few systems that I run. More like an advanced hobby.
SIW2 explained one of the differences, namely that unallocated space is not partitioned space. As a result, diskpart does not list a partition there.

However, there is one additional difference. You may note that diskpart shows a small 16 MB partition. This is the MSR (Microsoft Reserved Partition) which is present on EVERY GPT disk, whether it holds the OS or not. Disk Management simply does not show this partition.
 

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    Win11 Pro 25H2 (RTM+)Intel i7-14650HX32 GBNo GPU - Built-in Intel Graphics
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    Win11 Pro 25H2 (RTM+)
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    Acemagic
    CPU
    Intel i7-14650HX
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    32 GB
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    No GPU - Built-in Intel Graphics
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This is Over provisioning for Samsung and you should be able to activate manually
and Not by the app itself. Verify in the app that the OP has been activated or not.
You can re-use that space as @Ghot suggested.

OP Setting for C:
Disk 1 | Total Capacity 931GB
OP Setting Partition Over Provisioning (Unallocated)
C:Boot_Disc OP
838GB NTFS 93GB Unallocated

This is for my 990 Pro

1709111553316.jpeg
 

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BamaInArk said:
FYI Samsung Magician shouldn't do this without the user setting this option as this is an optional setting.
Click to expand...
I most likely had the software installed some time ago on an old Windows installation and set it that way. Tried installing the Samsung software again yesterday and it refused to even start. Samsung does not write good software.
 

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    Windows 11 / Linux Minti9-12900k32 GB DDR4Strix RTX 3060
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    Windows 11 / Linux Mint
    Computer type
    PC/Desktop
    Manufacturer/Model
    C.S.D.
    CPU
    i9-12900k
    Motherboard
    Gigabyte Z690 UD AX DDR4
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    32 GB DDR4
    Graphics Card(s)
    Strix RTX 3060
    Sound Card
    Onboard
    Monitor(s) Displays
    LG QNED75URA 43" TV
    Screen Resolution
    3840x2160
    Hard Drives
    One 1tb M.2 for Windows, one 500gb M.2 for Linux, and a 8 TB HDD for data
    PSU
    850 watt
    Case
    Cougar
    Cooling
    upHere D6SEC CPU Cooler
    Keyboard
    Logitech G213
    Mouse
    Logitech G305
    Internet Speed
    1Gbit/100mb
    Browser
    Firefox
    Antivirus
    Microsoft
    Other Info
    Bluray optical writer drive

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    SpartaDOS6502CUltimate 1MBSophia 2
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    Atari 600XL
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    6502C
    Memory
    Ultimate 1MB
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    Sophia 2
    Monitor(s) Displays
    Sony MFM-HT95
    Screen Resolution
    320x200
    Hard Drives
    SIDE3
    PSU
    USB
+One for that opinion. Don’t like it; won’t ever use it again. JMHO.
 

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    Lenovo ThinkCentre M920S SFF
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    i7-9700 @ 3.00GHz
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    Lenovo 3132
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    32GBDDR4 @ 2666MHz
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    Intel HD 630 Graphics onboard
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    LG E2442
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    1 x Samsung 970 EVO PLUS 500GB NVMe SSD, 1 x WD_BLACK SN770
    250GB NVMe SSD (OS and programs), 1 x WD_BLACK SN770
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    11 Pro 24H2 26100.2454
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    PC/Desktop
    Manufacturer/Model
    Lenovo ThinkCentre M920S SFF
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    i5-8400 @ 2.80GHz
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    Lenovo 3132
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    32GB DDR4 @ 2600MHz
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    Intel HD 630 Graphics onboard
    Sound Card
    Realtek High Definition Audio onboard
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    LG FULL HD (1920x1080@59Hz)
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    1920 x 1080
    Hard Drives
    1 x Samsung 970 EVO PLUS NVMe; 1 x Samsung 980 NVMe SSD
    Case
    Lenovo Think Centre SFF
    Keyboard
    Cherry Stream TKL JK-8600US-2 Wired
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