drive d loose letter at every restart


F

fabio8v

Active member
Local time
12:28 AM
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28
OS
w11/os catalina
Hi
I got an iMac 27 2019, under Sequoia, at beginning, I did 3 partitions, 1 for mac, 1 for windows (exfat) and 1 for data (exfat). After I installed windows 11 I can't see the drive D, I have to add manually the letter D but, everytime I restart I loose the letter, someone can help me?
 

My Computer

System One

  • OS
    w11/os catalina
    Computer type
    PC/Desktop
    Manufacturer/Model
    assembled
    CPU
    i7 3770
    Motherboard
    gigabyte b75m d2v
    Memory
    16 gb
    Graphics Card(s)
    nvidia 710 2gb
    Sound Card
    on board
    Monitor(s) Displays
    3 x samsung 24"
    Screen Resolution
    1920 x 1080
    Hard Drives
    2x ssd 1tb samsung
Not sure, could just be a conflict with Mac OS partitions

Check Disk Management
  • Press `Win + X` and select Disk Management.
  • Locate your data partition and see if it appears without a drive letter.
  • Right-click it, select Change Drive Letter and Paths, then Assign D :.

Ensure the Partition is Set as Permanent
  • Open Command Prompt as Administrator (`Win + X` → Command Prompt (Admin) ).
  • Type each line below and press enter
  • Remember, replace X after “Select Volume” with the Data partition number of the USB

diskpart​
list volume​
select volume X (Replace X with your data partition number)​
assign letter=D​
exit​

  • Close the command window.
  • Reboot, see if D sticks
 
Last edited:

My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2 Build 22631.5472
    Computer type
    PC/Desktop
    Manufacturer/Model
    Sin-built
    CPU
    Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz (4th Gen?)
    Motherboard
    ASUS ROG Maximus VI Formula
    Memory
    32.0 GB of I forget and the box is in storage.
    Graphics Card(s)
    Gigabyte nVidia GeForce GTX 1660 Super OC 6GB
    Sound Card
    Onboard
    Monitor(s) Displays
    5 x LG 25MS500-B - 1 x 24MK430H-B - 1 x Wacom Pro 22" Tablet
    Screen Resolution
    All over the place
    Hard Drives
    Too many to list.
    OS on Samsung 1TB 870 QVO SATA
    PSU
    Silverstone 1500
    Case
    NZXT Phantom 820 Full-Tower Case
    Cooling
    Noctua NH-D15 Elite Class Dual Tower CPU Cooler / 6 x EziDIY 120mm / 2 x Corsair 140mm somethings / 1 x 140mm Thermaltake something / 2 x 200mm Corsair.
    Keyboard
    Corsair K95 / Logitech diNovo Edge Wireless
    Mouse
    Logitech: G402 / G502 / Mx Masters / MX Air Cordless
    Internet Speed
    1000/400Mbps
    Browser
    All sorts
    Antivirus
    Kaspersky Premium
    Other Info
    I’m on a horse.
  • Operating System
    Windows 11 Pro 23H2 Build: 22631.4249
    Computer type
    Laptop
    Manufacturer/Model
    LENOVO Yoga 7i EVO OLED 14" Touchscreen i5 12 Core 16GB/512GB
    CPU
    Intel Core 12th Gen i5-1240P Processor (1.7 - 4.4GHz)
    Memory
    16GB LPDDR5 RAM
    Graphics card(s)
    Intel Iris Xe Graphics Processor
    Sound Card
    Optimized with Dolby Atmos®
    Screen Resolution
    QHD 2880 x 1800 OLED
    Hard Drives
    M.2 512GB
    Antivirus
    Defender / Malwarebytes
    Other Info
    …still on a horse.
Does it stick if you assign a different drive letter to it, like E, F or G etc
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2 Build 22631.5472
    Computer type
    PC/Desktop
    Manufacturer/Model
    Sin-built
    CPU
    Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz (4th Gen?)
    Motherboard
    ASUS ROG Maximus VI Formula
    Memory
    32.0 GB of I forget and the box is in storage.
    Graphics Card(s)
    Gigabyte nVidia GeForce GTX 1660 Super OC 6GB
    Sound Card
    Onboard
    Monitor(s) Displays
    5 x LG 25MS500-B - 1 x 24MK430H-B - 1 x Wacom Pro 22" Tablet
    Screen Resolution
    All over the place
    Hard Drives
    Too many to list.
    OS on Samsung 1TB 870 QVO SATA
    PSU
    Silverstone 1500
    Case
    NZXT Phantom 820 Full-Tower Case
    Cooling
    Noctua NH-D15 Elite Class Dual Tower CPU Cooler / 6 x EziDIY 120mm / 2 x Corsair 140mm somethings / 1 x 140mm Thermaltake something / 2 x 200mm Corsair.
    Keyboard
    Corsair K95 / Logitech diNovo Edge Wireless
    Mouse
    Logitech: G402 / G502 / Mx Masters / MX Air Cordless
    Internet Speed
    1000/400Mbps
    Browser
    All sorts
    Antivirus
    Kaspersky Premium
    Other Info
    I’m on a horse.
  • Operating System
    Windows 11 Pro 23H2 Build: 22631.4249
    Computer type
    Laptop
    Manufacturer/Model
    LENOVO Yoga 7i EVO OLED 14" Touchscreen i5 12 Core 16GB/512GB
    CPU
    Intel Core 12th Gen i5-1240P Processor (1.7 - 4.4GHz)
    Memory
    16GB LPDDR5 RAM
    Graphics card(s)
    Intel Iris Xe Graphics Processor
    Sound Card
    Optimized with Dolby Atmos®
    Screen Resolution
    QHD 2880 x 1800 OLED
    Hard Drives
    M.2 512GB
    Antivirus
    Defender / Malwarebytes
    Other Info
    …still on a horse.
well, I tried both of suggests but at the restart the drive disappears... at list volume there is:

volume 0 C ntfs partition 186 gb whole start
volume 1 exfat partition 465 gb whole hidden
volume 2 efi. partition 300 mb whole system
 

My Computer

System One

  • OS
    w11/os catalina
    Computer type
    PC/Desktop
    Manufacturer/Model
    assembled
    CPU
    i7 3770
    Motherboard
    gigabyte b75m d2v
    Memory
    16 gb
    Graphics Card(s)
    nvidia 710 2gb
    Sound Card
    on board
    Monitor(s) Displays
    3 x samsung 24"
    Screen Resolution
    1920 x 1080
    Hard Drives
    2x ssd 1tb samsung
it seems this is the problem...drive d is hidden,,,
 

My Computer

System One

  • OS
    w11/os catalina
    Computer type
    PC/Desktop
    Manufacturer/Model
    assembled
    CPU
    i7 3770
    Motherboard
    gigabyte b75m d2v
    Memory
    16 gb
    Graphics Card(s)
    nvidia 710 2gb
    Sound Card
    on board
    Monitor(s) Displays
    3 x samsung 24"
    Screen Resolution
    1920 x 1080
    Hard Drives
    2x ssd 1tb samsung
I can only guess that the MacOS is preventing you from assigning that Drive Letter at boot.

Google “What would MacOS be interfering with to prevent a windows drive letter assignment?”
Pick any reason.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2 Build 22631.5472
    Computer type
    PC/Desktop
    Manufacturer/Model
    Sin-built
    CPU
    Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz (4th Gen?)
    Motherboard
    ASUS ROG Maximus VI Formula
    Memory
    32.0 GB of I forget and the box is in storage.
    Graphics Card(s)
    Gigabyte nVidia GeForce GTX 1660 Super OC 6GB
    Sound Card
    Onboard
    Monitor(s) Displays
    5 x LG 25MS500-B - 1 x 24MK430H-B - 1 x Wacom Pro 22" Tablet
    Screen Resolution
    All over the place
    Hard Drives
    Too many to list.
    OS on Samsung 1TB 870 QVO SATA
    PSU
    Silverstone 1500
    Case
    NZXT Phantom 820 Full-Tower Case
    Cooling
    Noctua NH-D15 Elite Class Dual Tower CPU Cooler / 6 x EziDIY 120mm / 2 x Corsair 140mm somethings / 1 x 140mm Thermaltake something / 2 x 200mm Corsair.
    Keyboard
    Corsair K95 / Logitech diNovo Edge Wireless
    Mouse
    Logitech: G402 / G502 / Mx Masters / MX Air Cordless
    Internet Speed
    1000/400Mbps
    Browser
    All sorts
    Antivirus
    Kaspersky Premium
    Other Info
    I’m on a horse.
  • Operating System
    Windows 11 Pro 23H2 Build: 22631.4249
    Computer type
    Laptop
    Manufacturer/Model
    LENOVO Yoga 7i EVO OLED 14" Touchscreen i5 12 Core 16GB/512GB
    CPU
    Intel Core 12th Gen i5-1240P Processor (1.7 - 4.4GHz)
    Memory
    16GB LPDDR5 RAM
    Graphics card(s)
    Intel Iris Xe Graphics Processor
    Sound Card
    Optimized with Dolby Atmos®
    Screen Resolution
    QHD 2880 x 1800 OLED
    Hard Drives
    M.2 512GB
    Antivirus
    Defender / Malwarebytes
    Other Info
    …still on a horse.
if it is macos preventing it (idk offhand as i havent researched it and never had that issue on my intel dual boot mbp)... you could just write a .bat to assign the drive letter and make it run at logon
 

My Computer

System One

  • OS
    Windows 11 Pro
dacrone said:
if it is macos preventing it (idk offhand as i havent researched it and never had that issue on my intel dual boot mbp)... you could just write a .bat to assign the drive letter and make it run at logon
Click to expand...
right!!! My hack, my mbp and my imac mid 2011 don't have this problem
 

My Computer

System One

  • OS
    w11/os catalina
    Computer type
    PC/Desktop
    Manufacturer/Model
    assembled
    CPU
    i7 3770
    Motherboard
    gigabyte b75m d2v
    Memory
    16 gb
    Graphics Card(s)
    nvidia 710 2gb
    Sound Card
    on board
    Monitor(s) Displays
    3 x samsung 24"
    Screen Resolution
    1920 x 1080
    Hard Drives
    2x ssd 1tb samsung
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