Questions tagged [tpm]

TPM (Trusted Platform Module) is both the name given to a published specification detailing the characteristics of a criptoprocessador safe, capable of storing cryptographic keys that protect information and the general name of implementations of this specification, often called "TPM chip" or "TPM Security Device".

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Bitlocker with TPM but without USB key?

I have Windows 10 x64 version 1903 build 18362.418. Recently I have added a TPM module (specification version is 2.0) to my machine and as far as I can tell it is working properly: its Status in tpm....
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Using Bitlocker with no TPM present, but instead using a USB key

I am trying to figure this out two things when using Bitlocker by storing the encryption key on a USB drive. I would like to understand two scenarios. Scene 1: I encrypt the drive using bitlocker ...
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Implication of physical access to a hard drive with Bitlocker enabled but without TPM

I have a Windows 10 machine (fully updated as of 2019-10-23) in a work place that I leave at work at the end of the days. I have enabled Bitlocker for the main OS drive which houses some personal data....
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TPM Key Authenticity and Verification

How can the authenticity of the keys stored in the TPM be verified to be authentic? How can the PK, KEK, db and dbx keys viewed by using the command "mokutil --'xx'" (in Ubuntu) be verified to be the ...
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TPM 2.0 Hardware software issue?

I recently bought a Dell Precision 5530 form a guy that I have later found out is/was a gov employee. After changing the Nvme 50 0GB hard drive to a Samsung Evo 970 1 TB and installing Ubuntu (and ...
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What is needed for Intel's fTPM technology to to work?

I am planning to upgrade my PC and to buy some new parts and I want to make sure that I can skip the physical TPM header on the motherboard so I can compare more motherboards and options. I find it ...
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63 views

Use Windows Hello Face recognition without TPM chip

Is there any possible way to use my IR-Webcamera for windows hello login without a TPM chip on my motherboard? I had this setup WITH a TPM 2.0 before but something went wrong and the TPM is not ...
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111 views

How to clear TPM 2.0 on Dell Inspiron 15 with recent BIOS?

I have a Dell Inspiron 15 (7577), service tag HG6D142, with BIOS version 1.8.0. I wanted to issue Clear TPM command from Windows 10 (build 1903), but this appeared: Clear TPM - device does not ...
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49 views

How to make Bitlocker recovery password unreadable/unrecoverable?

I use TPM2.0 + Bitlocker + PIN to encrypt SSD with Windows 10 Professional. I have backed up recovery password and continued. After the encryption complete and two reboots behind I can write in ...
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120 views

Do AMD PSP's have TPM?

I was recently wondering about systems which can protect a computer against firmware malware. A user on Information Security said that the an attempt to make a computer more secure is the TPM system. ...
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Accessing Trusted Platform Module(TPM) without root permission

Am Working on Trusted Platform Module(TPM) chip(Both TPM12 and TPM20). As of now am doing some operations on TPM such as, taking TPM ownership, Clearing TPM, Generating Keys inside TPM etc. But for ...
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Is TPM in lockout mode, when uplug a socket of an internal power supply in Lenovo T440s

My colleague's Lenovo T440s cannot power on/up yesterday, so I opened up the laptop and unplug the socket of the internal battery. I put everything back to normal and power on, and it powered on, so ...
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Asus notebook stuck on TPM screen

My Asus Q502L touchscreen notebook is stuck on a TPM selection screen. I am asked to press Esc or F12. No keys work. How do I get this thing back to normal?
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Trying to start Biitlocker I get “This device can't use a Trusted Platform Module.”

I am trying to upgrad a 500GB SATA disk that was bitlocker encrypted to a 2TB disk. Here's what I have done so far. 1. Turn off bitlocker on the source disk. This was necessary to be able to expand ...
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Decrypting old files from broken laptop to another

My laptop has a fingerprint scanner for encrypting files and my laptop is not working now.I have an enctypted files on my hardrive, can i still salvage my encrypted files and decrypt it with other ...
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Windows machine NOT booting to Bit-locker recovery screen

We have 1 user who doesnt remember the bitlocker password and the machine doesnt boot to recovery ID screen on hitting ESC. Can anyone suggest what should be done on such situations or share their ...
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307 views

BitLocker won't accept correct disk password after… something

The company I work for has computers with TPM chips and Windows 10 Enterprise, and uses BitLocker for full-disk encryption. They have BitLocker configured to require a password at boot (which I ...
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Installing TPM on Windows 10

I have a Sabertooth 990fx revision 2 motherboard, which I've had a number of years and am quite happy with. It is using the 2901 BIOS from 2016, which appears to be the latest available. I wanted to ...
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117 views

Save TPM initialization key, re-initialize, then restore

From what I've read, when you initialize a TPM chip it creates a random derived key (derived from its implicit root key). Other users will then set PCRs (i.e. UEFI, bootloader, etc), and eventually ...
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Windows 10 - Bitlocker - TPM with USB key - Not working

I’ve tried to implement Bitlocker TPM with USB key: I can see the .bek with ‘dir /A:S’. After a restart, the system doesn’t find any USB key. Anything I forgot? Thanks in advance.
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Which TPM PCRs does Windows seal into the BitLocker password?

For example, does it seal PCR1 into the password? What about PCRs 2 and 3?
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View TPM PCR contents on Windows

How do I view the PCR register contents on Windows? On Linux, you cat /sys/class/tpm/tpm0/device/pcrs, but I cannot find the Windows equivalent.
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Integrity Measurement - TPM-bypass

I am digging into Integrity Measurement Architecture and try to enable it on an embedded device. I have enabled the IMA related configuration flags and compiled the kernel. I can now see xattr ...
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368 views

Upgrade from TPM 1.2 to 2.0 on a Dell Precision T7610

I need to upgrade the TPM firmware on my Dell Precision T7610 from v1.2 to v2.0, however there is no TPM upgrade available on the Dell support website. They have an upgrade utility that covers a wide ...
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Does Xeon D-1527 have Trusted Platform Module?

As the question says, does the Intel Xeon D-1527 have a TPM (Trusted Platform Module)?
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TPM 2.0 hardware error DA lockout mode

I'm getting same error as mentioned in this post: TPM 2.0 simulator error DA lockout mode but with a discrete hardware tpm 2.0 module instead of simulator. Tried clearing ownership: # ...
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Quickly secure boot FDE VHD (without multiple reboots and Bitlocker key)

Can I secure boot to my Bitlocker encrypted VHDX without going through so many reboots? The most significant waste of time; it seems like there are 4 PC resets when I switch OS. I suspect one of the ...
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How does deactivating TPM in the T480 UEFI settings affect bitlocker? Is the TPM cleared?

My Lenovo T480 runs a Bitlocker protected Windows 10 installation. Bitlocker is configured to lock the system (request the passkey) if there are any hardware changes. I would like to keep the ...
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399 views

How can Windows boot with Bitlocker after clearing the TPM?

After installing Windows, I turned on Bitlocker for a full C:\ drive encryption. I saved the recovery keys and then let Bitlocker proceed with encrypting the full drive. When I rebooted, I was ...
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472 views

TPM 2.0 simulator error DA lockout mode

I have been playing around with the TPM 2.0 commands using the tools from https://github.com/tpm2-software/tpm2-tools on a fedora 29. I tried take ownership of the tpm by the example from the system ...
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643 views

Only one recover key is listed after manage-bde.exe -protectors -get c:

I have a TPM module on HP probook local machine (not AD member) I follow tenforums guide to backup recovery key. and discover only one recover key after manage-bde.exe -protectors -get c: ...
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215 views

Getting data off Bitlocker drive restrictions where Bitlocker uses TPM and no password

I'm exploring the security of Bitlocker when combined with TPM and secure boot (and no password for Bitlocker or BIOS), and am struggling with something - Does/How does Windows protect the early boot ...
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How to recover apparently dead Bios?

I have an Asus laptop with TPM module. I wanted to install another OS on it but didn't want to disable Secure Boot so I went into secure boot key management and using that menu set a new key on ...
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Bitlocker Ask If I Agree

I turned Bitlocker on and it ask me a question I'm not sure about. I had to hit a function key that allows me or somebody to take control of C:/ drive. The way it was stated made it unclear whether ...
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259 views

Is a laptop with Bitlocker rendered useless for a thief? [closed]

I have had 2 laptops stolen and it really pisses me off. I work too hard for my money for some thieving A-hole to enjoy the spoils off it while depriving me of what I rightfully owned. So, I am trying ...
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Can I stop BitLocker asking for a key on boot, without entering the recovery key? [duplicate]

We have a Windows 10 laptop belonging to a client which has started asking for a recovery key on boot: You need to enter your recovery key because Secure Boot policy has unexpectedly changed I don'...
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How to stop Gigabyte Designaire X399 / Threadripper 1920x from crashing on resume from sleep with TPM enabled?

When I try to put my Windows 10 (version 1809) PC to sleep, it will not resume correctly, and seems to wipe the TPM settings, meaning I have to recover using my Bitlocker recovery key. Is there ...
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135 views

How to perform TPM firmware upgrade on latest Windows 10?

I have several HP desktops running latest Windows 10 and requiring a TPM firmware upgrade (sp82407.exe) to fix last year's faulty Infineon crypto vulnerability. The updater requires the TPM to be ...
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196 views

I'm not sure whether my system uses TPM or not

I've encrypted my hard drive with Windows 10 version 1803 installed on it. I used BitLocker for it, but before the encryption process I had TPM turned off in UEFI. Suddenly I found it that it can be ...
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29 views

Isolate (secure) multiple boot images from harming my PC

Is it possible to protect my bare-metal from compromise, so that I can be fairly confident that (for example) restoring a VHDX system image every month keeps me clean? If so, how? I'm building a ...
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446 views

“TPM Storage is not available” and other TPM issues

Three days ago I completely reinstalled Windows, including formatting my drives. Two days ago I installed the Windows Cumulative Update, KB4338819. After doing so, I got a TPM reset request on boot....
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(Dual boot) Windows 7 asks for recovery key after update

I have an HP Zbook 15 G3 with 2 x Samsung SM961 nVME SSD's installed. One SSD has Windows 7 Ent installed and is protected by BitLocker. The second SSD has Windows 10 Ent installed but is not (...
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2k views

Windows 10 TPM Firmware Update for Surface Pro 3

I just updated my OS to windows 10 pro version 1803. In Windows Defender, I now see a warning telling me a firmware update is needed for my security processor (TPM). There is a learn more link that ...
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449 views

TPM Firmware Update, Backup and Clearing

Windows defender is telling me "a firmware update is needed for your security processor (TPM)", i did some searching and found out basically how to update and clear the tpm, but it gave me a warning ...
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How to backup before clearing TPM

The Windows Defender Security Centre is asking me to update TPM which requires Clear TPM. And above the Clear TPM button, there is a text says ... Ensure you back up your data before clearing the ...
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Unable to execute “TPM 1.2 Update” on Ubuntu (XPS 13 9350): This TPM is Owned

My Ubuntu 17.10 is showing a TPM Update (1.2, 5.81.0.0 -> 5.81.2.1) for a couple of weeks or months now but when I restart the machine it's unable to execute the firmware update successfully. Error: ...
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Boot loop after doing 'Clear TPM' by mistake in BIOS

I was trying to disable 'Secure boot' on my brand new laptop and I pressed enter by mistake while on a field that was named something like 'Clear TPM'. My computer then shut down and now it is looping ...
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PC won't boot because of TPM enabled

I turned TPM on when I was previously booting my PC. Now it can't boot, since there is no TMP connected to the motherboard (there never was one in the first place). There is no video output. After ...
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1answer
600 views

Windows 10 TPM failing to boot

I have a TPM Module on an old Dell Precision T5400 which I am trying to enable under Windows 10. Unfortunately, windows is hanging on boot at the splash screen after I enable TPM in the BIOS. Does ...
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398 views

Sabertooth 990FX R3.0 won't enable TPM

I just installed a brand new Sabertooth 990FX R3.0 from Asus. I also purchased and successfully installed a TPM chip by ASUS model/part no. ASUS 90MC03W0-M0XBN1 MK TPM-M R2.0 TPM-chip. It is a TPM 2.0 ...