Bitlocker Security Questions


The default key length for BitLocker is AES 128-bit. However, BitLocker also supports AES 256-bit, which can be configured for enhanced security if needed.

The choice between AES 128-bit and AES 256-bit depends on your security requirements—AES 128-bit is highly secure and generally faster, while AES 256-bit provides an even greater level of protection but with slightly reduced performance.
 

My Computer

System One

  • OS
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Dell XPS 16 9640
    CPU
    Intel Core Ultra 9 185H
    Memory
    32GB LPDDR5x 7467 MT/s
    Graphics Card(s)
    NVIDIA GeForce RTX 4070 8GB GDDR6
    Monitor(s) Displays
    16.3 inch 4K+ OLED Infinity Edge Touch
    Screen Resolution
    3840 x 2400
    Hard Drives
    1 Terabyte M.2 PCIe NVMe SSD
    Cooling
    Vapor Chamber Cooling
    Mouse
    None
    Internet Speed
    960 Mbps Netgear Mesh + 2 Satellites
    Browser
    Microsoft Edge (Chromium) + Bing
    Antivirus
    Microsoft Windows Security (Defender)
    Other Info
    Microsoft 365 subscription
    Microsoft OneDrive 1TB Cloud
    Microsoft Visual Studio
    Microsoft Visual Studio Code
    Microsoft Sysinternals Suite
    Microsoft BitLocker
    Microsoft Copilot
    Macrium Reflect X subscription
    Dell Support Assist
    Dell Command | Update
    1Password Password Manager
    Amazon Kindle for PC
    Lightroom/Photoshop subscription
    Interactive Brokers Trader Workstation
I know how much you love jumping up and down about your "43 seconds", but that one has also been patched. :-)
I know how much you love jumping up and down about your "BitLocker uses 256-bit AES encryption", but as far as all the people who had bought one of those hackable modern Windows 11 laptops are concerned, that one wasn't making a shred of difference until many months after this thread had been created. Like I said, if I have to wait for more than 3 whole years before it will finally be "safe", then thanks but no thanks, it is what it is, better luck next time, apologies for the inconvenience of me not buying into that fad, and, have a nice day!
:-)
 

My Computers

System One System Two

  • OS
    11 Home
    Computer type
    Laptop
    Manufacturer/Model
    Asus TUF Gaming F16 (2024)
    CPU
    i7 13650HX
    Memory
    16GB DDR5
    Graphics Card(s)
    GeForce RTX 4060 Mobile
    Sound Card
    Eastern Electric MiniMax DAC Supreme; Emotiva UMC-200; Astell & Kern AK240
    Monitor(s) Displays
    Sony Bravia XR-55X90J
    Screen Resolution
    3840×2160
    Hard Drives
    512GB SSD internal
    37TB external
    PSU
    Li-ion
    Cooling
    2× Arc Flow Fans, 4× exhaust vents, 5× heatpipes
    Keyboard
    Logitech K800
    Mouse
    Logitech G402
    Internet Speed
    20Mbit/s up, 250Mbit/s down
    Browser
    FF
  • Operating System
    11 Home
    Computer type
    Laptop
    Manufacturer/Model
    Medion S15450
    CPU
    i5 1135G7
    Memory
    16GB DDR4
    Graphics card(s)
    Intel Iris Xe
    Sound Card
    Eastern Electric MiniMax DAC Supreme; Emotiva UMC-200; Astell & Kern AK240
    Monitor(s) Displays
    Sony Bravia XR-55X90J
    Screen Resolution
    3840×2160
    Hard Drives
    2TB SSD internal
    37TB external
    PSU
    Li-ion
    Mouse
    Logitech G402
    Keyboard
    Logitech K800
    Internet Speed
    20Mbit/s up, 250Mbit/s down
    Browser
    FF
I know how much you love jumping up and down about your "BitLocker uses 256-bit AES encryption", but as far as all the people who had bought one of those hackable modern Windows 11 laptops are concerned, that one wasn't making a shred of difference until many months after this thread had been created. Like I said, if I have to wait for more than 3 whole years before it will finally be "safe", then thanks but no thanks, it is what it is, better luck next time, apologies for the inconvenience of me not buying into that fad, and, have a nice day!
:-)
You apparently didn't read my previous post where I stated that the BitLocker default is AES 128-Bit encryption. The user can decide if he wants to use 256-Bit encryption. It's user configurable.

You really do need to understand that there is no such thing as an app or an OS that's 100% guaranteed safe and un-hackable. Your delight in finding vulnerabilities simply demonstrates that fact. If your goal is to find an invulnerable system, you'll only be disappointed.

The bottom line is that if you and I are going to use computers, we must always be vigilant and do the best we can to be as safe as possible.

I really do enjoy reading your posts and I wish the very best to you too! :-)
 

My Computer

System One

  • OS
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Dell XPS 16 9640
    CPU
    Intel Core Ultra 9 185H
    Memory
    32GB LPDDR5x 7467 MT/s
    Graphics Card(s)
    NVIDIA GeForce RTX 4070 8GB GDDR6
    Monitor(s) Displays
    16.3 inch 4K+ OLED Infinity Edge Touch
    Screen Resolution
    3840 x 2400
    Hard Drives
    1 Terabyte M.2 PCIe NVMe SSD
    Cooling
    Vapor Chamber Cooling
    Mouse
    None
    Internet Speed
    960 Mbps Netgear Mesh + 2 Satellites
    Browser
    Microsoft Edge (Chromium) + Bing
    Antivirus
    Microsoft Windows Security (Defender)
    Other Info
    Microsoft 365 subscription
    Microsoft OneDrive 1TB Cloud
    Microsoft Visual Studio
    Microsoft Visual Studio Code
    Microsoft Sysinternals Suite
    Microsoft BitLocker
    Microsoft Copilot
    Macrium Reflect X subscription
    Dell Support Assist
    Dell Command | Update
    1Password Password Manager
    Amazon Kindle for PC
    Lightroom/Photoshop subscription
    Interactive Brokers Trader Workstation
You apparently didn't read my previous post where I stated that the BitLocker default is AES 128-Bit encryption. The user can decide if he wants to use 256-Bit encryption. It's user configurable.
I did read your post. But I didn't have to read it to know that 128-bit AES is the default option, as I have already known it for years.
You really do need to understand that there is no such thing as an app or an OS that's 100% guaranteed safe and un-hackable.
What makes you think that I don't already understand this fact? Most of what I do for a living is about data security. The stakeholders of every project I work on as an Enterprise Java developer include some of the largest corporations in the world.
Your delight in finding vulnerabilities simply demonstrates that fact.
Finding vulnerabilities is actually a major part of my job description, albeit not when it comes to the Windows OS and features thereof. To me, personally, everything that relates to Windows is just a hobby. Each time when I poop Enterprise Java Beans, I can't hold a press conference about it all day and all of the night, as I also have to think about protecting my sanity so that's why. :smirk:
If your goal is to find an invulnerable system, you'll only be disappointed.
It isn't, and, it never will be. For the most part, I come here to have some fun. I am a Sagittarius, and, according to the Greek Zodiac calendar, a Chiron aka "The Wounded Healer". I think I understand one or two things about vulnerability.
The bottom line is that if you and I are going to use computers, we must always be vigilant and do the best we can to be as safe as possible.
My brain comes at it from different directions. I tend to agree with Joymalya Basu Roy on this:
"Security is a subjective matter. If I talk about myself as an admin, what I consider secure, the end-user may feel the same for restrictive, hampering his daily work. As such, a balance needs to be struck between security and usability."
Source: Windows Measured Boot - How It Helps To Secure Windows OS Platform HTMD Blog
I really do enjoy reading your posts and I wish the very best to you too! :-)
e48236b3f0e8adf92a338445bc733d56_w200.gif
 

My Computers

System One System Two

  • OS
    11 Home
    Computer type
    Laptop
    Manufacturer/Model
    Asus TUF Gaming F16 (2024)
    CPU
    i7 13650HX
    Memory
    16GB DDR5
    Graphics Card(s)
    GeForce RTX 4060 Mobile
    Sound Card
    Eastern Electric MiniMax DAC Supreme; Emotiva UMC-200; Astell & Kern AK240
    Monitor(s) Displays
    Sony Bravia XR-55X90J
    Screen Resolution
    3840×2160
    Hard Drives
    512GB SSD internal
    37TB external
    PSU
    Li-ion
    Cooling
    2× Arc Flow Fans, 4× exhaust vents, 5× heatpipes
    Keyboard
    Logitech K800
    Mouse
    Logitech G402
    Internet Speed
    20Mbit/s up, 250Mbit/s down
    Browser
    FF
  • Operating System
    11 Home
    Computer type
    Laptop
    Manufacturer/Model
    Medion S15450
    CPU
    i5 1135G7
    Memory
    16GB DDR4
    Graphics card(s)
    Intel Iris Xe
    Sound Card
    Eastern Electric MiniMax DAC Supreme; Emotiva UMC-200; Astell & Kern AK240
    Monitor(s) Displays
    Sony Bravia XR-55X90J
    Screen Resolution
    3840×2160
    Hard Drives
    2TB SSD internal
    37TB external
    PSU
    Li-ion
    Mouse
    Logitech G402
    Keyboard
    Logitech K800
    Internet Speed
    20Mbit/s up, 250Mbit/s down
    Browser
    FF
The default key length for BitLocker is AES 128-bit. However, BitLocker also supports AES 256-bit, which can be configured for enhanced security if needed.

The choice between AES 128-bit and AES 256-bit depends on your security requirements—AES 128-bit is highly secure and generally faster, while AES 256-bit provides an even greater level of protection but with slightly reduced performance.
TraderGary, how did you download your graphics cards drivers and update it? You mentioned you used a dell program to do this and not windows updates? Can you take a look at my thread on dell xps 15 9520 graphics card driver? I recently updated my graphic card drivers for Intel iris and Nvidia 3050 from the Dell website.
 

My Computer

System One

  • OS
    Windows 11 Pro
TraderGary, how did you download your graphics cards drivers and update it? You mentioned you used a dell program to do this and not windows updates? Can you take a look at my thread on dell xps 15 9520 graphics card driver? I recently updated my graphic card drivers for Intel iris and Nvidia 3050 from the Dell website.
In the past 25 years I've had 7 Dell XPS laptops. I've never had problems with any of them and I've always used only Dell updates. In my experience the Dell engineers know what they're doing.

I start every day by first running Dell Command | Update followed by running Windows Update. I also run Dell Support Assist about once a week. I attribute never having driver problems to downloading drivers only from Dell.
 

My Computer

System One

  • OS
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Dell XPS 16 9640
    CPU
    Intel Core Ultra 9 185H
    Memory
    32GB LPDDR5x 7467 MT/s
    Graphics Card(s)
    NVIDIA GeForce RTX 4070 8GB GDDR6
    Monitor(s) Displays
    16.3 inch 4K+ OLED Infinity Edge Touch
    Screen Resolution
    3840 x 2400
    Hard Drives
    1 Terabyte M.2 PCIe NVMe SSD
    Cooling
    Vapor Chamber Cooling
    Mouse
    None
    Internet Speed
    960 Mbps Netgear Mesh + 2 Satellites
    Browser
    Microsoft Edge (Chromium) + Bing
    Antivirus
    Microsoft Windows Security (Defender)
    Other Info
    Microsoft 365 subscription
    Microsoft OneDrive 1TB Cloud
    Microsoft Visual Studio
    Microsoft Visual Studio Code
    Microsoft Sysinternals Suite
    Microsoft BitLocker
    Microsoft Copilot
    Macrium Reflect X subscription
    Dell Support Assist
    Dell Command | Update
    1Password Password Manager
    Amazon Kindle for PC
    Lightroom/Photoshop subscription
    Interactive Brokers Trader Workstation
Thanks TraderGary. What do you mean Dell Command | Update?

Are those the same programs or 2 separate programs? When I type in search bar Dell Update, that app shows up and opens up on my laptop. I then click on check and then it would show whatever critical updates is available. Is that what you mean? However, why does it show at bottom support for Dell Update expired already? Does it mean if you need like customer support for helping you with Dell Update? The phrasing sounds confusing because it sound like you can't even use Dell Update based on that line. Unless they mean like customer support? It says to install support assist to keep your system updated and performing its best. Do you have that message?

I heard SupportAssist isn't that good?
 

My Computer

System One

  • OS
    Windows 11 Pro
Thanks TraderGary. What do you mean Dell Command | Update?

Are those the same programs or 2 separate programs? When I type in search bar Dell Update, that app shows up and opens up on my laptop. I then click on check and then it would show whatever critical updates is available. Is that what you mean? However, why does it show at bottom support for Dell Update expired already? Does it mean if you need like customer support for helping you with Dell Update? The phrasing sounds confusing because it sound like you can't even use Dell Update based on that line. Unless they mean like customer support? It says to install support assist to keep your system updated and performing its best. Do you have that message?

I heard SupportAssist isn't that good?
Dell Update and Dell Command | Update are two very different Dell utilities. The latter is more advanced and the one I prefer to use. I also frequently use Dell SupportAssist. You're free to listen to whomever you like.
 
Last edited:

My Computer

System One

  • OS
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Dell XPS 16 9640
    CPU
    Intel Core Ultra 9 185H
    Memory
    32GB LPDDR5x 7467 MT/s
    Graphics Card(s)
    NVIDIA GeForce RTX 4070 8GB GDDR6
    Monitor(s) Displays
    16.3 inch 4K+ OLED Infinity Edge Touch
    Screen Resolution
    3840 x 2400
    Hard Drives
    1 Terabyte M.2 PCIe NVMe SSD
    Cooling
    Vapor Chamber Cooling
    Mouse
    None
    Internet Speed
    960 Mbps Netgear Mesh + 2 Satellites
    Browser
    Microsoft Edge (Chromium) + Bing
    Antivirus
    Microsoft Windows Security (Defender)
    Other Info
    Microsoft 365 subscription
    Microsoft OneDrive 1TB Cloud
    Microsoft Visual Studio
    Microsoft Visual Studio Code
    Microsoft Sysinternals Suite
    Microsoft BitLocker
    Microsoft Copilot
    Macrium Reflect X subscription
    Dell Support Assist
    Dell Command | Update
    1Password Password Manager
    Amazon Kindle for PC
    Lightroom/Photoshop subscription
    Interactive Brokers Trader Workstation
Gary, I do something similar. In my case, I am using a Lenovo laptop so I use their software as a sanity check to make sure I'm up to date, but I prefer to download the drivers from the Lenovo web site manually just to make sure that I have a local copy of all drivers.

Then I take it one step further. I export all the drivers from my system to a folder and make a backup of that. This then becomes my primary source of drivers in case I ever need to do a clean install because the drivers can be restored so rapidly. But, I still have all the manually downloaded drivers as well "just in case" I have any problem with drivers I exported and then re-imported on the new Windows install.

Also, any time I get a new machine I spend at least a week testing and making sure that I can easily get a clean install on the system and documenting every step. This way I can guarantee rapid clean installs on all my machines. I can go from bare metal to a fully customized installation with all drivers and apps in way under one hour, maybe as little as 30 minutes. Base Windows and drivers are probably under 15 minutes.
 

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
Dell Update and Dell Command | Update are two very different Dell utilities. The latter is more advanced and the one I prefer to use. I also frequently use Dell SupportAssist. You're free to listen to whomever you like.


How did you get that Dell Command Update program? Did you manually download it yourself? Dell Update was already installed on my laptop not by me. But there is no Dell Command Update program.
 

My Computer

System One

  • OS
    Windows 11 Pro

My Computer

System One

  • OS
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Dell XPS 16 9640
    CPU
    Intel Core Ultra 9 185H
    Memory
    32GB LPDDR5x 7467 MT/s
    Graphics Card(s)
    NVIDIA GeForce RTX 4070 8GB GDDR6
    Monitor(s) Displays
    16.3 inch 4K+ OLED Infinity Edge Touch
    Screen Resolution
    3840 x 2400
    Hard Drives
    1 Terabyte M.2 PCIe NVMe SSD
    Cooling
    Vapor Chamber Cooling
    Mouse
    None
    Internet Speed
    960 Mbps Netgear Mesh + 2 Satellites
    Browser
    Microsoft Edge (Chromium) + Bing
    Antivirus
    Microsoft Windows Security (Defender)
    Other Info
    Microsoft 365 subscription
    Microsoft OneDrive 1TB Cloud
    Microsoft Visual Studio
    Microsoft Visual Studio Code
    Microsoft Sysinternals Suite
    Microsoft BitLocker
    Microsoft Copilot
    Macrium Reflect X subscription
    Dell Support Assist
    Dell Command | Update
    1Password Password Manager
    Amazon Kindle for PC
    Lightroom/Photoshop subscription
    Interactive Brokers Trader Workstation

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