How to format HD to remove OS


PA WOODCHUCK

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Local time
6:21 AM
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11
OS
Windows 11
I have a 2TB drive which has OS installed and would like to format to remove OS since I will use only as secondary HD as storage? Can this be done in disk management and how?

thanks
 

My Computer

System One

  • OS
    Windows 11
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell R11
    CPU
    i7-10700
    Memory
    32GB
    Graphics Card(s)
    GFORCE RTX 2070 SUPER

Roban

Member
Local time
6:21 AM
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29
OS
Windows 11 Pro 64Bit
In Disk Management, right-click on the partition and choose format.
 

My Computer

System One

  • OS
    Windows 11 Pro 64Bit
    CPU
    Intel Core i3 10100 @ 3.60GHz Comet Lake 14nm Tech
    Motherboard
    ASRock H410M-HDV (CPUSocket)
    Memory
    32GB
    Graphics Card(s)
    2048MB ATI Radeon RX550/550 Series (ASRock)
    Sound Card
    Realtek High Definition Audio
    Monitor(s) Displays
    (2)DELL S2721HS (1920x1080@60Hz)
    Screen Resolution
    1920x1080@60Hz
    Hard Drives
    931GB Crucial CT1000MX500SSD1 (SATA (SSD))
    465GB Samsung SSD 870 EVO 500GB (SATA (SSD)) 25 °C
    931GB Inateck ASM1153E SCSI Disk Device (USB (SATA) ) 32 °C
    1863GB JMicron Generic SCSI Disk Device (USB (SATA) )
    PSU
    Gamdias Kratos M1-750B 750W ATX12V v2.2 80 PLUS BRONZE Certified Non-Modular Active PFC Power Supply with Built-in RGB Lighting Effects and Addressable LEDs
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    Chrome
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    Sound Cards
    Playback Devices
    Speakers (2- Xonar SoundCard)
    Speakers (Realtek High Definition Audio) (default)
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    SPDIF Interface (2- Xonar SoundCard)
    Recording Devices
    Microphone (Yeti Stereo Microphone)
    Line (2- Xonar SoundCard)
    Microphone (2- Xonar SoundCard) (default)
    Microphone (Live Streamer CAM313 Microphone)

spapakons

Well-known member
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1:21 PM
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939
Location
Athens
OS
Windows 11 Pro 21H2 64-bit (build 22000.856)
If it has an OS, it should have some small partitions as well. I would delete them all and create a new single partition to take the whole disk.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 21H2 64-bit (build 22000.856)
    Computer type
    Laptop
    Manufacturer/Model
    Acer Extensa 5630EZ
    CPU
    Mobile DualCore Intel Core 2 Duo T7250, 2000 MHz
    Motherboard
    Acer Extensa 5630
    Memory
    4GB
    Graphics Card(s)
    Mobile Intel(R) GMA 4500M (Mobile 4 series)
    Sound Card
    Realtek ALC268 @ Intel 82801IB ICH9 - High Definition Audio Controller
    Monitor(s) Displays
    1
    Screen Resolution
    1280x800
    Hard Drives
    Samsung SSD 850 EVO 250GB SATA Device (250 GB, SATA-III)
    Internet Speed
    VDSL 50 Mbps
    Browser
    MICROSOFT EDGE
    Antivirus
    WINDOWS DEFENDER
    Other Info
    Legacy MBR installation, no TPM, no Secure Boot, no WDDM 2.0 graphics drivers, cannot get more unsupported ;) This is only my test laptop. I had installed Windows 11 here before upgrading my main PC. For my main PC I use everyday see my 2nd system specs.
  • Operating System
    Windows 11 Pro v21H2 (build 22000.856)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom-built PC
    CPU
    Intel Core-i7 3770 3.40GHz s1155 (3rd generation)
    Motherboard
    Asus P8H61 s1155 ATX
    Memory
    2x Kingston Hyper-X Blu 8GB DDR3-1600
    Graphics card(s)
    Gainward NE5105T018G1-1070F (nVidia GeForce GTX 1050Ti 4GB GDDR5)
    Sound Card
    Realtek HD audio (ALC887)
    Monitor(s) Displays
    Sony Bravia KDL-19L4000 19" LCD TV via VGA
    Screen Resolution
    1440x900 32-bit 60Hz
    Hard Drives
    Patriot Burst Elite 480GB SSD as system disk, Western Digital Caviar Purple 4TB SATA III (WD40PURZ) as second
    PSU
    Thermaltake Litepower RGB 550W Full Wired
    Case
    SUPERCASE MIDI-TOWER
    Cooling
    Stock Intel CPU Fan, 1x 8cm fan at the back
    Mouse
    Sunnyline OptiEye PS/2
    Keyboard
    Mitsumi 101-key PS/2
    Internet Speed
    100Mbps
    Browser
    Microsoft Edge, Mozilla Firefox
    Antivirus
    Microsoft Windows Defender
    Other Info
    Legacy BIOS (MBR) installation, no TPM, no Secure Boot, WDDM 3.0 graphics drivers, WEI score 7.4

RFS

Well-known member
Member
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Local time
11:21 AM
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244
Location
Derbyshire, UK
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Windows 11 Home
To completely wipe a disk so that it can be reformatted, start an elevated command prompt and enter -

diskpart
list disk
select disk n
(where n is the number of the disk from the list command to be cleared)
clean
 

My Computers

System One System Two

  • OS
    Windows 11 Home
    Computer type
    PC/Desktop
    Manufacturer/Model
    Self-build
    CPU
    Intel I3-10100
    Motherboard
    MSI H410M-PRO
    Memory
    16 GB
    Graphics Card(s)
    Nvidia GT 1030
    Sound Card
    Motherboard default
    Monitor(s) Displays
    Philips 27 inch
    Screen Resolution
    1920x1080
    Hard Drives
    Samsung EVO 970 NVMe SSD 256 Gb
    Samsung QVO 870 SATA SSD 2 Tb
    PSU
    ATX 450W
    Keyboard
    Logitech
    Mouse
    Logitech Wireless
    Internet Speed
    930 Mb down / 120 Mb up
    Browser
    Edge
    Antivirus
    Windows Defender
    Other Info
    Microsoft Office 2021 Plus
  • Operating System
    Windows 11 Home
    Computer type
    PC/Desktop
    Manufacturer/Model
    Self-build
    CPU
    Intel i3-8100
    Motherboard
    Gigabyte Z370 D3
    Memory
    16 Gb
    Graphics card(s)
    Nvidia GT 720
    Sound Card
    Motherboard default
    Monitor(s) Displays
    Philips 27-inch
    Screen Resolution
    1920x1080
    Hard Drives
    Samsung 960 NVMe SSD 256 Gb
    Seagate 2 Tb HDD
    PSU
    ATX 450W
    Mouse
    Logitech Wireless
    Keyboard
    Microsoft
    Internet Speed
    930 Mb down / 120 Mb up
    Browser
    Edge
    Antivirus
    Windows Defender

cereberus

Well-known member
Pro User
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Local time
11:21 AM
Posts
2,278
OS
Windows 10 Pro + others in VHDs
In Disk Management, right-click on the partition and choose format.
That does not help get rid of the hidden partitions.
 

My Computer

System One

  • OS
    Windows 10 Pro + others in VHDs
    Computer type
    Laptop
    Manufacturer/Model
    ASUS Vivobook 14
    CPU
    I7
    Motherboard
    Yep, Laptop has one.
    Memory
    16 GB
    Graphics Card(s)
    Integrated Intel Iris XE
    Sound Card
    Realtek built in
    Monitor(s) Displays
    N/A
    Screen Resolution
    1920x1080
    Hard Drives
    1 TB Optane NVME SSD, 1 TB NVME SSD
    PSU
    Yep, got one
    Case
    Yep, got one
    Cooling
    Stella Artois
    Keyboard
    Built in
    Mouse
    Bluetooth , wired
    Internet Speed
    72 Mb/s :-(
    Browser
    Edge mostly
    Antivirus
    Defender
    Other Info
    TPM 2.0

cereberus

Well-known member
Pro User
VIP
Local time
11:21 AM
Posts
2,278
OS
Windows 10 Pro + others in VHDs
To completely wipe a disk so that it can be reformatted, start an elevated command prompt and enter -

diskpart
list disk
select disk n
(where n is the number of the disk from the list command to be cleared)
clean
Yep, very easy but word of warning - be sure you have selected the correct drive.

I also add following

convert mbr (or gpt if drive > 2TB)
create partition primary
select partition 1
format fs=ntfs quick
assign


One can of course format an unallocated drive from disk management.
 

My Computer

System One

  • OS
    Windows 10 Pro + others in VHDs
    Computer type
    Laptop
    Manufacturer/Model
    ASUS Vivobook 14
    CPU
    I7
    Motherboard
    Yep, Laptop has one.
    Memory
    16 GB
    Graphics Card(s)
    Integrated Intel Iris XE
    Sound Card
    Realtek built in
    Monitor(s) Displays
    N/A
    Screen Resolution
    1920x1080
    Hard Drives
    1 TB Optane NVME SSD, 1 TB NVME SSD
    PSU
    Yep, got one
    Case
    Yep, got one
    Cooling
    Stella Artois
    Keyboard
    Built in
    Mouse
    Bluetooth , wired
    Internet Speed
    72 Mb/s :-(
    Browser
    Edge mostly
    Antivirus
    Defender
    Other Info
    TPM 2.0

RFS

Well-known member
Member
VIP
Local time
11:21 AM
Posts
244
Location
Derbyshire, UK
OS
Windows 11 Home

My Computers

System One System Two

  • OS
    Windows 11 Home
    Computer type
    PC/Desktop
    Manufacturer/Model
    Self-build
    CPU
    Intel I3-10100
    Motherboard
    MSI H410M-PRO
    Memory
    16 GB
    Graphics Card(s)
    Nvidia GT 1030
    Sound Card
    Motherboard default
    Monitor(s) Displays
    Philips 27 inch
    Screen Resolution
    1920x1080
    Hard Drives
    Samsung EVO 970 NVMe SSD 256 Gb
    Samsung QVO 870 SATA SSD 2 Tb
    PSU
    ATX 450W
    Keyboard
    Logitech
    Mouse
    Logitech Wireless
    Internet Speed
    930 Mb down / 120 Mb up
    Browser
    Edge
    Antivirus
    Windows Defender
    Other Info
    Microsoft Office 2021 Plus
  • Operating System
    Windows 11 Home
    Computer type
    PC/Desktop
    Manufacturer/Model
    Self-build
    CPU
    Intel i3-8100
    Motherboard
    Gigabyte Z370 D3
    Memory
    16 Gb
    Graphics card(s)
    Nvidia GT 720
    Sound Card
    Motherboard default
    Monitor(s) Displays
    Philips 27-inch
    Screen Resolution
    1920x1080
    Hard Drives
    Samsung 960 NVMe SSD 256 Gb
    Seagate 2 Tb HDD
    PSU
    ATX 450W
    Mouse
    Logitech Wireless
    Keyboard
    Microsoft
    Internet Speed
    930 Mb down / 120 Mb up
    Browser
    Edge
    Antivirus
    Windows Defender

spapakons

Well-known member
Power User
Local time
1:21 PM
Posts
939
Location
Athens
OS
Windows 11 Pro 21H2 64-bit (build 22000.856)
DiskPart's clean command will delete all data on target disk, as it was at the factory. Be careful not to accidentally delete your Windows disk! That's why I did not mention it, because it is dangerous. Like using "format c:" in MS-DOS. I had done this stupid error (as I believe many other young guys in the '80s) while I was trying all DOS commands to see what they do. Believe me, it is not funny. Thank goodness all my games were on floppy disks, so I lost only DOS in hard disk. All I had to do is reinstall it from the floppies.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 21H2 64-bit (build 22000.856)
    Computer type
    Laptop
    Manufacturer/Model
    Acer Extensa 5630EZ
    CPU
    Mobile DualCore Intel Core 2 Duo T7250, 2000 MHz
    Motherboard
    Acer Extensa 5630
    Memory
    4GB
    Graphics Card(s)
    Mobile Intel(R) GMA 4500M (Mobile 4 series)
    Sound Card
    Realtek ALC268 @ Intel 82801IB ICH9 - High Definition Audio Controller
    Monitor(s) Displays
    1
    Screen Resolution
    1280x800
    Hard Drives
    Samsung SSD 850 EVO 250GB SATA Device (250 GB, SATA-III)
    Internet Speed
    VDSL 50 Mbps
    Browser
    MICROSOFT EDGE
    Antivirus
    WINDOWS DEFENDER
    Other Info
    Legacy MBR installation, no TPM, no Secure Boot, no WDDM 2.0 graphics drivers, cannot get more unsupported ;) This is only my test laptop. I had installed Windows 11 here before upgrading my main PC. For my main PC I use everyday see my 2nd system specs.
  • Operating System
    Windows 11 Pro v21H2 (build 22000.856)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom-built PC
    CPU
    Intel Core-i7 3770 3.40GHz s1155 (3rd generation)
    Motherboard
    Asus P8H61 s1155 ATX
    Memory
    2x Kingston Hyper-X Blu 8GB DDR3-1600
    Graphics card(s)
    Gainward NE5105T018G1-1070F (nVidia GeForce GTX 1050Ti 4GB GDDR5)
    Sound Card
    Realtek HD audio (ALC887)
    Monitor(s) Displays
    Sony Bravia KDL-19L4000 19" LCD TV via VGA
    Screen Resolution
    1440x900 32-bit 60Hz
    Hard Drives
    Patriot Burst Elite 480GB SSD as system disk, Western Digital Caviar Purple 4TB SATA III (WD40PURZ) as second
    PSU
    Thermaltake Litepower RGB 550W Full Wired
    Case
    SUPERCASE MIDI-TOWER
    Cooling
    Stock Intel CPU Fan, 1x 8cm fan at the back
    Mouse
    Sunnyline OptiEye PS/2
    Keyboard
    Mitsumi 101-key PS/2
    Internet Speed
    100Mbps
    Browser
    Microsoft Edge, Mozilla Firefox
    Antivirus
    Microsoft Windows Defender
    Other Info
    Legacy BIOS (MBR) installation, no TPM, no Secure Boot, WDDM 3.0 graphics drivers, WEI score 7.4

RFS

Well-known member
Member
VIP
Local time
11:21 AM
Posts
244
Location
Derbyshire, UK
OS
Windows 11 Home
DiskPart's clean command will delete all data on target disk, as it was at the factory. Be careful not to accidentally delete your Windows disk! That's why I did not mention it, because it is dangerous. Like using "format c:" in MS-DOS. I had done this stupid error (as I believe many other young guys in the '80s) while I was trying all DOS commands to see what they do. Believe me, it is not funny. Thank goodness all my games were on floppy disks, so I lost only DOS in hard disk. All I had to do is reinstall it from the floppies.

"Clean" on its own will just delete the partitions but not erase the data. If you want all the data erasing (eg if you're planning to sell the drive) then you need use "clean all" instead, which naturally will take some time.

I would assume (no, I'm not going to try!) that if you try to clean the C drive with diskpart within Windows, it might stop you ....
 

My Computers

System One System Two

  • OS
    Windows 11 Home
    Computer type
    PC/Desktop
    Manufacturer/Model
    Self-build
    CPU
    Intel I3-10100
    Motherboard
    MSI H410M-PRO
    Memory
    16 GB
    Graphics Card(s)
    Nvidia GT 1030
    Sound Card
    Motherboard default
    Monitor(s) Displays
    Philips 27 inch
    Screen Resolution
    1920x1080
    Hard Drives
    Samsung EVO 970 NVMe SSD 256 Gb
    Samsung QVO 870 SATA SSD 2 Tb
    PSU
    ATX 450W
    Keyboard
    Logitech
    Mouse
    Logitech Wireless
    Internet Speed
    930 Mb down / 120 Mb up
    Browser
    Edge
    Antivirus
    Windows Defender
    Other Info
    Microsoft Office 2021 Plus
  • Operating System
    Windows 11 Home
    Computer type
    PC/Desktop
    Manufacturer/Model
    Self-build
    CPU
    Intel i3-8100
    Motherboard
    Gigabyte Z370 D3
    Memory
    16 Gb
    Graphics card(s)
    Nvidia GT 720
    Sound Card
    Motherboard default
    Monitor(s) Displays
    Philips 27-inch
    Screen Resolution
    1920x1080
    Hard Drives
    Samsung 960 NVMe SSD 256 Gb
    Seagate 2 Tb HDD
    PSU
    ATX 450W
    Mouse
    Logitech Wireless
    Keyboard
    Microsoft
    Internet Speed
    930 Mb down / 120 Mb up
    Browser
    Edge
    Antivirus
    Windows Defender

Bree

Well-known member
Guru
VIP
Local time
11:21 AM
Posts
4,351
Location
S/E England, UK
OS
Windows 11 Home
If you want all the data erasing (eg if you're planning to sell the drive) then you need use "clean all" instead, which naturally will take some time.
You really don't want to do that on an SSD, there are other ways to secure erase an SSD without wearing it out by writing to every sector. Use the ATA Secure Erase command, or the manufacturer's own utility.
 

My Computers

System One System Two

  • OS
    Windows 11 Home
    Computer type
    Laptop
    Manufacturer/Model
    Acer Aspire 3 A315-23
    CPU
    AMD Athlon Silver 3050U
    Memory
    8GB
    Graphics Card(s)
    Radeon Graphics
    Monitor(s) Displays
    laptop screen
    Screen Resolution
    1366x768 native resolution, up to 2560x1440 with Radeon Virtual Super Resolution
    Hard Drives
    1TB HDD
    Browser
    Edge, Firefox
    Antivirus
    Defender
    Other Info
    fully 'Windows 11 ready' laptop. Windows 10 C: partition migrated from my old unsupported 'main machine' then upgraded to 11. A test migration ran Insider builds for 2 months. When 11 was released on 5th October it was re-imaged back to 10 and was offered the upgrade in Windows Update on 20th October.


    My SYSTEM THREE is a Dell Latitude 5410, i7-10610U, 32GB RAM, 512GB ssd, Windows 11 Pro.
  • Operating System
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Dell Lattitude E4310
    CPU
    i5 M 520
    Motherboard
    0T6M8G
    Memory
    4GB
    Screen Resolution
    1366x768
    Hard Drives
    500GB HDD
    Browser
    Firefox, Edge
    Antivirus
    Defender
    Other Info
    unsupported machine: Legacy bios, MBR, TPM 1.2, upgraded from W10 to W11 using W10/W11 hybrid install media workaround.


    My SYSTEM THREE is a Dell Latitude 5410, i7-10610U, 32GB RAM, 512GB ssd, Windows 11 Pro.

spapakons

Well-known member
Power User
Local time
1:21 PM
Posts
939
Location
Athens
OS
Windows 11 Pro 21H2 64-bit (build 22000.856)
Probably DiskPart could warn you against cleaning the Windows disk, but what if it let's you do it with a simple yes? I would not risk it. For the record "format c:" also asked, and I just replied yes to proceed. "My final knowledge...I wish I had it before", as we say in Greek (I wish I knew before I got into the trap).
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 21H2 64-bit (build 22000.856)
    Computer type
    Laptop
    Manufacturer/Model
    Acer Extensa 5630EZ
    CPU
    Mobile DualCore Intel Core 2 Duo T7250, 2000 MHz
    Motherboard
    Acer Extensa 5630
    Memory
    4GB
    Graphics Card(s)
    Mobile Intel(R) GMA 4500M (Mobile 4 series)
    Sound Card
    Realtek ALC268 @ Intel 82801IB ICH9 - High Definition Audio Controller
    Monitor(s) Displays
    1
    Screen Resolution
    1280x800
    Hard Drives
    Samsung SSD 850 EVO 250GB SATA Device (250 GB, SATA-III)
    Internet Speed
    VDSL 50 Mbps
    Browser
    MICROSOFT EDGE
    Antivirus
    WINDOWS DEFENDER
    Other Info
    Legacy MBR installation, no TPM, no Secure Boot, no WDDM 2.0 graphics drivers, cannot get more unsupported ;) This is only my test laptop. I had installed Windows 11 here before upgrading my main PC. For my main PC I use everyday see my 2nd system specs.
  • Operating System
    Windows 11 Pro v21H2 (build 22000.856)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom-built PC
    CPU
    Intel Core-i7 3770 3.40GHz s1155 (3rd generation)
    Motherboard
    Asus P8H61 s1155 ATX
    Memory
    2x Kingston Hyper-X Blu 8GB DDR3-1600
    Graphics card(s)
    Gainward NE5105T018G1-1070F (nVidia GeForce GTX 1050Ti 4GB GDDR5)
    Sound Card
    Realtek HD audio (ALC887)
    Monitor(s) Displays
    Sony Bravia KDL-19L4000 19" LCD TV via VGA
    Screen Resolution
    1440x900 32-bit 60Hz
    Hard Drives
    Patriot Burst Elite 480GB SSD as system disk, Western Digital Caviar Purple 4TB SATA III (WD40PURZ) as second
    PSU
    Thermaltake Litepower RGB 550W Full Wired
    Case
    SUPERCASE MIDI-TOWER
    Cooling
    Stock Intel CPU Fan, 1x 8cm fan at the back
    Mouse
    Sunnyline OptiEye PS/2
    Keyboard
    Mitsumi 101-key PS/2
    Internet Speed
    100Mbps
    Browser
    Microsoft Edge, Mozilla Firefox
    Antivirus
    Microsoft Windows Defender
    Other Info
    Legacy BIOS (MBR) installation, no TPM, no Secure Boot, WDDM 3.0 graphics drivers, WEI score 7.4
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