win 10 and 11 dualboot mounting/hiding different drives


E

elron

New member
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5:06 AM
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Win11 Win10 Linux
Hi,


I have win10 installed on a "non removable" NVME on a desktop machine. (obviously it can be taken out, but t's a pain to remove every time I boot into Win11)

I am also running Win11 from another HDD on that same box.

For security reasons, I don't want my Win11 to see my NVME as well as two other SSDs that I am using with my Win10.

Meaning my Win11 system should only see the partitioned hard drive it is installed on (I partitioned that HDD into a system and a data drive)
I also don't want my Win10 to see my the HDD that has Win11 and the data drive I created to be used with that system.

Basically I want to keep system drive and data drives between the two OS completely separate.

I know I can unmount, but from what I understand that's doe in the mount point of the drive and therefore wouldn't be different depending on what system I boot into.

How do I solve this issue?

Thanks
 

My Computer

System One

  • OS
    Win11 Win10 Linux
    Computer type
    PC/Desktop
There is a Registry key to hide a drive, but I don't remember it. I think you can do it with Winaero Tweaker. However, you can simply search for Disk Manager and remove the drive letter. Click on the partition you want to hide, right-click and select to add or change the drive letter. Then remove it. I am not sure but it might also be an option to hide the specific partition so no application can see it.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2 (5699), 25H2 (8457)
    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, no SSE4.2, 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 v25H2 (build 26200.8457)
    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)
    GIGABYTE GeForce RTX 3050 WINDFORCE OC V2 6GB (GV-N3050WF2OCV2-6GD)
    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
    WD Blue SA510 2.5 1000GB 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
    Deepcool Gamma Archer CPU cooler, 1x 8cm fan at the back
    Keyboard
    Mitsumi 101-key PS/2
    Mouse
    Sunnyline OptiEye 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
Basically you can't do that. Remove the win10 stick(s).
Is win11 on a HDD (spindle drive) or an ssd or an nvme?

BIOS, grub, and windows are designed to detect and mount everything that is connected to the mobo.
 

My Computers

System One System Two

  • OS
    win 11Pro 25H2 26200.8246
    Computer type
    PC/Desktop
    Manufacturer/Model
    DIY: LianLi 207 case, ASUS mobo, Arctic aio cooling
    CPU
    I9-13900k
    Motherboard
    ASUS ROG STRIX Z790-E Gaming wifi-6E, latest AMI BIOS 3107
    Memory
    G.Skill Ripjaws S5 32GB Kit DDR5 6000.
    Graphics Card(s)
    GeForce RTX™ 3060 Ti VISION OC 8G (rev. 2.0)
    Sound Card
    on mobo
    Monitor(s) Displays
    Dell S3221QS (curved 32")
    Screen Resolution
    4K but I usually display at 1K
    Hard Drives
    Sam 980 Pro 1T M.2, 990Pro, WD 570, others(all NVMe)
    PSU
    Corsair RM750e fully modular
    Case
    Lian Li 207
    Cooling
    CPU:Arctic liq frz iii Pro 360 on top, CASE: 2 front fans IN, 2 bottom fans in.
    Keyboard
    Corsair K70 RGB Core
    Mouse
    Logitech M510
    Internet Speed
    100Mbps Comcast; I226-V NIC
    Browser
    Firefox(current)
    Antivirus
    on win BitDefender AV Free
    Other Info
    Terabyte Unlimited Image
    WuMgr, StartAllBack, , Revo Uninstaller Pro Portable.

    Davinci Resolve or Wondershare Filmora Basic to process my vlogs. DJI Pocket 2
  • Operating System
    win 10, Mint
    Computer type
    Laptop
    Manufacturer/Model
    Lenovo P15s
    CPU
    i7-10510U 1.8-4.9GHz
    Motherboard
    Intel SoC
    Memory
    16GB DDR4
    Graphics card(s)
    Nvidia Quadro P520 2GB DDR5 supports 4K external via HDMI or USB-C
    Sound Card
    Realtek ALC3287 HD
    Monitor(s) Displays
    15.6"
    Screen Resolution
    1K
    Hard Drives
    NVMe various
You could disable the drive in BIOS, but Windows 10 and 11 will detect it anyway. To avoid using it the only way is to hide the partition or remove the drive letter.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2 (5699), 25H2 (8457)
    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, no SSE4.2, 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 v25H2 (build 26200.8457)
    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)
    GIGABYTE GeForce RTX 3050 WINDFORCE OC V2 6GB (GV-N3050WF2OCV2-6GD)
    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
    WD Blue SA510 2.5 1000GB 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
    Deepcool Gamma Archer CPU cooler, 1x 8cm fan at the back
    Keyboard
    Mitsumi 101-key PS/2
    Mouse
    Sunnyline OptiEye 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
thanks. yes, I know about the diskmanager option, but AFAIK that sets a flag on the drive, rather than being specific to each OS?

Meaning I'd have to hide / unhide each drive manually everytime?
 

My Computer

System One

  • OS
    Win11 Win10 Linux
    Computer type
    PC/Desktop
Looks like that registry trick only hides them in explorer, but they are still accessible through the OS if u know the path.

What I am trying to do is have each OS separate in a way, that if one gets a virus/hacked, it cannot affect the other
 

My Computer

System One

  • OS
    Win11 Win10 Linux
    Computer type
    PC/Desktop
Not on the same motherboard.
 

My Computers

System One System Two

  • OS
    win 11Pro 25H2 26200.8246
    Computer type
    PC/Desktop
    Manufacturer/Model
    DIY: LianLi 207 case, ASUS mobo, Arctic aio cooling
    CPU
    I9-13900k
    Motherboard
    ASUS ROG STRIX Z790-E Gaming wifi-6E, latest AMI BIOS 3107
    Memory
    G.Skill Ripjaws S5 32GB Kit DDR5 6000.
    Graphics Card(s)
    GeForce RTX™ 3060 Ti VISION OC 8G (rev. 2.0)
    Sound Card
    on mobo
    Monitor(s) Displays
    Dell S3221QS (curved 32")
    Screen Resolution
    4K but I usually display at 1K
    Hard Drives
    Sam 980 Pro 1T M.2, 990Pro, WD 570, others(all NVMe)
    PSU
    Corsair RM750e fully modular
    Case
    Lian Li 207
    Cooling
    CPU:Arctic liq frz iii Pro 360 on top, CASE: 2 front fans IN, 2 bottom fans in.
    Keyboard
    Corsair K70 RGB Core
    Mouse
    Logitech M510
    Internet Speed
    100Mbps Comcast; I226-V NIC
    Browser
    Firefox(current)
    Antivirus
    on win BitDefender AV Free
    Other Info
    Terabyte Unlimited Image
    WuMgr, StartAllBack, , Revo Uninstaller Pro Portable.

    Davinci Resolve or Wondershare Filmora Basic to process my vlogs. DJI Pocket 2
  • Operating System
    win 10, Mint
    Computer type
    Laptop
    Manufacturer/Model
    Lenovo P15s
    CPU
    i7-10510U 1.8-4.9GHz
    Motherboard
    Intel SoC
    Memory
    16GB DDR4
    Graphics card(s)
    Nvidia Quadro P520 2GB DDR5 supports 4K external via HDMI or USB-C
    Sound Card
    Realtek ALC3287 HD
    Monitor(s) Displays
    15.6"
    Screen Resolution
    1K
    Hard Drives
    NVMe various
There are a couple of solutions that I can think of:

1) BitLocker encrypt drives you don't want the other OS to have access to. Then that OS will not be able to access those drives or partitions unless you unlock them.

2) In the OS, open Disk Management and offline any disks that you don't want that OS to have access to.

They may be some other ways but I would have to test those.
 

My Computers

System One System Two

  • OS
    Win11 Pro 25H2 (RTM+)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Acemagic
    CPU
    Intel i7-14650HX
    Memory
    32 GB
    Graphics Card(s)
    No GPU - Built-in Intel Graphics
    Sound Card
    Integrated
    Monitor(s) Displays
    Varies as machine will often be moved to locations with different monitors
    Screen Resolution
    Varies
    Hard Drives
    1 x 1TB Gen 4 NVMe SSD
    PSU
    120W Power Brick
    Keyboard
    Corsair K70 Max RGB Magnetic Keyboard
    Mouse
    Logitech MX Master 3
    Internet Speed
    1Gb Up / 1 Gb Down
    Browser
    Edge
    Antivirus
    Windows Defender
  • Operating System
    Win11 Pro 25H2 (RTM+)
    Computer type
    Laptop
    Manufacturer/Model
    Lenovo ThinkBook 13x Gen 2
    CPU
    Intel i7-1255U
    Memory
    16 GB
    Graphics card(s)
    Intel Iris Xe Graphics
    Sound Card
    Realtek® ALC3306-CG codec
    Monitor(s) Displays
    13.3-inch IPS Display
    Screen Resolution
    WQXGA (2560 x 1600)
    Hard Drives
    2 TB 4 x 4 NVMe SSD
    PSU
    USB-C / Thunderbolt 4 Power / Charging
    Keyboard
    Backlit, spill resistant keyboard
    Mouse
    Buttonless Glass Precision Touchpad
    Internet Speed
    1Gb Up / 1Gb Down
    Browser
    Edge
    Antivirus
    Windows Defender
    Other Info
    WiFi 6e / Bluetooth 5.1 / Facial Recognition / Fingerprint Sensor / ToF (Time of Flight) Human Presence Sensor
Regarding changes in Disk Manager, those are permanent, you don't have to do it every time. Just do them once in each Windows version.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2 (5699), 25H2 (8457)
    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, no SSE4.2, 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 v25H2 (build 26200.8457)
    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)
    GIGABYTE GeForce RTX 3050 WINDFORCE OC V2 6GB (GV-N3050WF2OCV2-6GD)
    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
    WD Blue SA510 2.5 1000GB 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
    Deepcool Gamma Archer CPU cooler, 1x 8cm fan at the back
    Keyboard
    Mitsumi 101-key PS/2
    Mouse
    Sunnyline OptiEye 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
spapakons said:
Regarding changes in Disk Manager, those are permanent, you don't have to do it every time. Just do them once in each Windows version.
Click to expand...
That's what I did on my dual boot setup and you're correct. I only had to hide the drives one time.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 25H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    PowerSpec B746
    CPU
    Intel Core i7-10700K
    Motherboard
    ASRock Z490 Phantom Gaming 4/ax
    Memory
    16GB (8GB PC4-19200 DDR4 SDRAM x2)
    Graphics Card(s)
    NVIDIA GeForce GTX 1050 TI
    Sound Card
    Realtek Audio
    Monitor(s) Displays
    #1. LG ULTRAWIDE 34" #2. AOC Q32G2WG3 32"
    Screen Resolution
    #1. 3440 X 1440 #2. 1920 x 1080
    Hard Drives
    NVMe WDC WDS100T2B0C-00PXH0 1TB
    Samsung SSD 860 EVO 1TB
    PSU
    750 Watts (62.5A)
    Case
    PowerSpec/Lian Li ATX 205
    Keyboard
    Logitech K270
    Mouse
    Logitech M185
    Browser
    Microsoft Edge and Firefox
    Antivirus
    Webroot SecureAnywhere CE 26.1
  • Operating System
    Windows 11 Canary Channel
    Computer type
    PC/Desktop
    Manufacturer/Model
    PowerSpec G156
    CPU
    Intel Core i5-8400 CPU @ 2.80GHz
    Motherboard
    AsusTeK Prime B360M-A
    Memory
    16 MB DDR 4-2666
    Monitor(s) Displays
    23" Speptre HDMI 75Hz
    Screen Resolution
    1920x1080
    Hard Drives
    Samsung 970 EVO 500GB NVMe
    Keyboard
    Logitek K270
    Mouse
    Logitek M185
    Browser
    Firefox, Edge and Edge Canary
    Antivirus
    Windows Defender
Just to make sure you understand it, load Windows 10 and hide the Windows 11 partition. Then restart in Windows 11 and hide the Windows 10 partition, so either version cannot access the other, just like you want. The change is done once, no need to do it every time.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2 (5699), 25H2 (8457)
    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, no SSE4.2, 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 v25H2 (build 26200.8457)
    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)
    GIGABYTE GeForce RTX 3050 WINDFORCE OC V2 6GB (GV-N3050WF2OCV2-6GD)
    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
    WD Blue SA510 2.5 1000GB 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
    Deepcool Gamma Archer CPU cooler, 1x 8cm fan at the back
    Keyboard
    Mitsumi 101-key PS/2
    Mouse
    Sunnyline OptiEye 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
Another method: If the systems are on different physical disks, load Windows 10 and disable the Windows 11 disk in Device Manager. Then restart to Windows 11 and disable the Windows 10 disk in Device Manager.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2 (5699), 25H2 (8457)
    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, no SSE4.2, 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 v25H2 (build 26200.8457)
    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)
    GIGABYTE GeForce RTX 3050 WINDFORCE OC V2 6GB (GV-N3050WF2OCV2-6GD)
    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
    WD Blue SA510 2.5 1000GB 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
    Deepcool Gamma Archer CPU cooler, 1x 8cm fan at the back
    Keyboard
    Mitsumi 101-key PS/2
    Mouse
    Sunnyline OptiEye 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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