Solved BitLocker & Clean Installing Windows 11


IanMosley

IanMosley

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Location
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OS
Windows 11 Pro 24H2 (Build 26100.3915)
My drive arrangement is this -

Disk Management.png

Disc 0 contains most of my user partitions and I install to / boot from disc 1 - both are internal drives.

The issue I'm exeriencing is that the Windows boot drive C: is always bitlocked, as well as drives D: , E: , & F:

I've taken an image of disc 0 using Macrium Reflect, so I can erase these partitions as part of the clean install procedure.

However, how do I ensure disc C; is not bitlocked?
 

My Computer

System One

  • OS
    Windows 11 Pro 24H2 (Build 26100.3915)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Precision 3660 Tower Workstation
    CPU
    12th Gen Intel(R) Core(TM) i9-12900 5.10 GHz
    Motherboard
    64-bit operating system, x64-based processor
    Memory
    32.00 GB
    Graphics Card(s)
    Intel UHD Graphics 770
    Sound Card
    Realtek Audio
    Monitor(s) Displays
    Dell P2714H Monitor
    Screen Resolution
    1920 x 1080
    Hard Drives
    1 x 512GB NVME PC801 NVMe SK hynix - BOOT
    1 x 1TB Seagate ST1000LM049-2GH172 Internal HDD
    1 x 1TB Seagate STGX4000400 External HDD
    1 x 2TB Seagate STGX4000400 External HDD
    1 x 4TB Seagate STGX4000400 External HDD
    PSU
    300 Watts
    Cooling
    Air
    Keyboard
    Microsoft Wired Keyboard 600
    Mouse
    Microsoft USB Basic Optical Mouse v2.0
    Browser
    Firefox
    Antivirus
    Windows Defender + Malwarebytes Premium
    Other Info
    BaseBoard Manufacturer Dell Inc.
    BaseBoard Product 0J1CP3
    BaseBoard Version A01
From Powershell
Code: 
# Is the volume encrypted
Get-BitlockerVolume -MountPoint C:

Decrypt the volume
Disable-Bitlocker -MountPoint C:

# run the first command to check status and make sure the volume is fully decrypted
 

My Computer

System One

  • OS
    Linux Mint
    Computer type
    Laptop
    Manufacturer/Model
    System76 Lemur Pro
Thanks for the information.

However, is there no way to stop the partitions being encrypted in the first place?
 

My Computer

System One

  • OS
    Windows 11 Pro 24H2 (Build 26100.3915)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Precision 3660 Tower Workstation
    CPU
    12th Gen Intel(R) Core(TM) i9-12900 5.10 GHz
    Motherboard
    64-bit operating system, x64-based processor
    Memory
    32.00 GB
    Graphics Card(s)
    Intel UHD Graphics 770
    Sound Card
    Realtek Audio
    Monitor(s) Displays
    Dell P2714H Monitor
    Screen Resolution
    1920 x 1080
    Hard Drives
    1 x 512GB NVME PC801 NVMe SK hynix - BOOT
    1 x 1TB Seagate ST1000LM049-2GH172 Internal HDD
    1 x 1TB Seagate STGX4000400 External HDD
    1 x 2TB Seagate STGX4000400 External HDD
    1 x 4TB Seagate STGX4000400 External HDD
    PSU
    300 Watts
    Cooling
    Air
    Keyboard
    Microsoft Wired Keyboard 600
    Mouse
    Microsoft USB Basic Optical Mouse v2.0
    Browser
    Firefox
    Antivirus
    Windows Defender + Malwarebytes Premium
    Other Info
    BaseBoard Manufacturer Dell Inc.
    BaseBoard Product 0J1CP3
    BaseBoard Version A01
It should not encrypt by default unless the system is configured to do so. I don't use a MS account, but it certainly is possible this setting/config transfers. If there is no bitlocker policy then disabling bitlocker on a volume should prevent re-encryption.
 

My Computer

System One

  • OS
    Linux Mint
    Computer type
    Laptop
    Manufacturer/Model
    System76 Lemur Pro

My Computers

System One System Two

  • OS
    Windows 11 Pro 24H2 26100.3775
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Optiplex 7080
    CPU
    i9-10900 10 core 20 threads
    Motherboard
    DELL 0J37VM
    Memory
    32 gb
    Graphics Card(s)
    none-Intel UHD Graphics 630
    Sound Card
    Integrated Realtek
    Monitor(s) Displays
    Benq 27
    Screen Resolution
    2560x1440
    Hard Drives
    1tb Solidigm m.2 nvme+256gb SKHynix m.2 nvme /External drives 512gb Samsung m.2 sata+1tb Kingston m2.nvme+ 4gb Solidigm nvme
    PSU
    500w
    Case
    MT
    Cooling
    Dell Premium
    Keyboard
    Logitech wired
    Mouse
    Logitech wireless
    Internet Speed
    so slow I'm too embarrassed to tell
    Browser
    #1 Edge #2 Firefox
    Antivirus
    Defender+MWB Premium
  • Operating System
    Windows 11 Pro 24H2 26100.3775
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Optiplex 9020
    CPU
    i7-4770
    Motherboard
    stock Dell
    Memory
    24 gb
    Graphics card(s)
    integrated
    Sound Card
    integrated
    Monitor(s) Displays
    Benq 27
    Screen Resolution
    2560x1440
    Hard Drives
    256 gb Toshiba BG4 M.2 NVE SSB and 1 tb hdd
    PSU
    500w
    Case
    MT
    Cooling
    Dell factory
    Mouse
    Logitech wireless
    Keyboard
    Logitech wired
    Internet Speed
    still too embarrassed to tell
    Browser
    Firefox
    Antivirus
    Defender
Once you disable device encryption manually it shouldn’t auto encrypt drives moving forward.

In admin CMD prompt the below cmd should disable Bitlocker/Device Encyption for the specified drive letter:
Batch: 
MANAGE-BDE -OFF C:
 

My Computer

System One

  • OS
    PE
glasskuter said:
You may find this helpful. Both Device Encryption and Bitlocker on?? How to turn both off?? - Windows 10 Help Forums

Also I ran across this Dell article regarding updating your bios that you might want to be aware of if you leave bitlocker on

Click to expand...
Very interesting - thank you.
BobOmb said:
Once you disable device encryption manually it shouldn’t auto encrypt drives moving forward.

In admin CMD prompt the below cmd should disable Bitlocker/Device Encyption for the specified drive letter:
Batch: 
MANAGE-BDE -OFF C:
Click to expand...
I - initially - used the command you gave me.

I am just completing a clean install of Windows 11 Pro v 23H2 (Build 22631.2361) with no sign of 'Bitlocker Interference'!!

:shawn:
 

My Computer

System One

  • OS
    Windows 11 Pro 24H2 (Build 26100.3915)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Precision 3660 Tower Workstation
    CPU
    12th Gen Intel(R) Core(TM) i9-12900 5.10 GHz
    Motherboard
    64-bit operating system, x64-based processor
    Memory
    32.00 GB
    Graphics Card(s)
    Intel UHD Graphics 770
    Sound Card
    Realtek Audio
    Monitor(s) Displays
    Dell P2714H Monitor
    Screen Resolution
    1920 x 1080
    Hard Drives
    1 x 512GB NVME PC801 NVMe SK hynix - BOOT
    1 x 1TB Seagate ST1000LM049-2GH172 Internal HDD
    1 x 1TB Seagate STGX4000400 External HDD
    1 x 2TB Seagate STGX4000400 External HDD
    1 x 4TB Seagate STGX4000400 External HDD
    PSU
    300 Watts
    Cooling
    Air
    Keyboard
    Microsoft Wired Keyboard 600
    Mouse
    Microsoft USB Basic Optical Mouse v2.0
    Browser
    Firefox
    Antivirus
    Windows Defender + Malwarebytes Premium
    Other Info
    BaseBoard Manufacturer Dell Inc.
    BaseBoard Product 0J1CP3
    BaseBoard Version A01
Please see this thread for a detailed discussion regarding this:

www.elevenforum.com

How to prevent automatic drive encryption in Windows 11?

So I work for a company that sells computers and I do some tweaking to disable telemetry and whatnot for customers who choose to do so. Some SSDs which support hardware encryption such as the Samsung 980 PRO and many of the new ones, the moment you create a Windows account you will notice that...
www.elevenforum.com www.elevenforum.com
 

My Computers

System One System Two

  • OS
    Win11 Pro 24H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Self-built
    CPU
    Intel i7 11700K
    Motherboard
    ASUS Prime Z590-A MB
    Memory
    64GB (Waiting for warranty replacement of another 64GB for 128GB total)
    Graphics Card(s)
    No GPU - Built-in Intel Graphics
    Sound Card
    Integrated
    Monitor(s) Displays
    HP Envy 32
    Screen Resolution
    2560 x 1440
    Hard Drives
    1 x 1TB NVMe SSD
    1 x 2TB NVMe SSD
    1 x 4TB NVMe SSD
    3 x 512GB 2.5" SSD
    1 x 4TB 2.5" SSD
    5 x 8TB Seagate Barracuda HDD
    PSU
    Corsair HX850i
    Case
    Corsair iCUE RGB 5000X mid tower case
    Cooling
    Noctua NF-S12A chromax.black.swap case fans (Qty. 7) & Home Computer Specifications, Configuration, and Usage Notes General Specifications ASUS Prime Z590-A motherboard, serial number M1M0KC222467ARP Intel Core i7-11700K CPU (11th Gen Rocket Lake / LGA 1200 Socket) 128GB Crucial Ballistix RGB DDR4 3200 MHz DRAM (4 x 32GB) Corsair iCUE RGB 5000X mid tower case Noctua NH-D15 chromax.black CPU cooler Noctua NF-S12A chromax.black.swap case fans (Qty. 7) & Corsair LL-120 RGB Fans (Qty. 3)
    Keyboard
    Corsair K70 Max RGB Magnetic Keyboard
    Mouse
    Logitech MX Master 3
    Internet Speed
    1Gb Up / 1 Gb Down
    Browser
    Edge
    Antivirus
    Windows Defender
    Other Info
    The five 8TB drives and three 512GB SSDs are part of a DrivePool using StableBit DrivePool software. The three SSDs are devoted purely to caching for the 8TB drives. All of the important data is stored in triplicate so that I can withstand simultaneous failure of 2 disks.

    Networking: 2.5Gbps Ethernet and WiFi 6e
  • Operating System
    Win11 Pro 23H2
    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
    Mouse
    Buttonless Glass Precision Touchpad
    Keyboard
    Backlit, spill resistant keyboard
    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
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